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2011
Illinois
University of Illinois Extension ICSG3-11

Midwest

Indiana
Purdue Extension ID-169

Small Fruit and Grape Spray Guide


Iowa
Iowa State University Extension PM 1375

Kansas
Kansas State University Agricultural Experiment Station and Cooperative Extension Service

Kentucky
University of Kentucky Cooperative Extension Service ID-94

Missouri
University of Missouri Missouri State University MX377

Nebraska
University of Nebraska — Lincoln Extension

Ohio
Ohio State University Extension 506B2

Oklahoma
Oklahoma State University Oklahoma Cooperative Extension Service E-987

West Virginia
West Virginia University Extension Service Publication 865

Wisconsin
University of Wisconsin-Extension A3899

2011 Midwest Small Fruit and Grape Spray Guide
Contents
Foreword...................................................................................................................................... iii Tips on Using This Spray Guide...................................................................................................ix Grape Spray Schedule....................................................................................................................1 Blueberry Spray Schedule............................................................................................................23 Raspberry and Blackberry Spray Schedule..................................................................................28 Strawberry Spray Schedule..........................................................................................................35 REI and PHI for Fungicides.........................................................................................................44 REI and PHI for Insecticides.......................................................................................................46 Special Insect Pest Problems.......................................................................................................48 Weed Control in Small Fruit Crops.............................................................................................50
Midwest Small Fruit Pest Management Handbook The Midwest Small Fruit Pest Management Handbook is a companion publication to this spray guide that contains additional information on control strategies for small fruit diseases, insect pests, and weeds. Pesticide safety, sprayer calibration, plant nutrition, and weed identification are also covered. Copies of the publication (OSU Bul. 861) may be available from your state Extension office or from Ohio State University Extension Publications, 385 Kottman Hall, 2021 Coffey Rd., Columbus, OH 43210-1044, (614) 292-1607. It is also available online at the Midwest Small Fruit & Grape Net at extension.osu.edu/~sfgnet. Legal Responsibilities for Pesticide Use Pesticides suggested in this publication have been registered by the Pesticides Regulation Division of the Environmental Protection Agency. At the time this bulletin was published, these pesticides were registered for use as indicated on the individual product labels. These registrations can change at any time. In order to keep you informed of the latest updates on pesticide registrations, a Web version of this publication is updated regularly and can be viewed online at www.ag.purdue.edu/hla/Hort/Pages/sfg_sprayguide.aspx. It is your responsibility as a pesticide user to read and follow all current label directions for the specific pesticide being used. The legal limitations on the use of these pesticides should be strictly observed to prevent excessive residues in or on harvested fruit. All growers should read product labels, follow directions carefully, and observe pre-harvest intervals and application rates. Some of the pesticides suggested in this publication are on the EPA Restricted Use List, and users must be certified private applicators to purchase and apply these materials. The pesticide label is a legal document. Check this publication online at www.ag.purdue.edu/hla/Hort/Pages/sfg_sprayguide.aspx for the most recent information concerning pesticide registrations.

Pesticide Emergency and Poison Control Centers
Nationwide phone numbers:
Pesticide Poisoning: Call the Poison Center (800) 222-1222 This number will automatically connect you to the poison center nearest you. National Pesticide Information Retrieval System (NPIRS): (765) 494-6616 National Pesticide Information Center: (800) 858-7378 CHEMTREC (800) 424-9300

Kentucky
Kentucky Regional Poison Control Center: (800) 222-1222 Metro Louisville residents may phone: (502) 589-8222 KY Environmental Response: (800) 928-2380 or (502) 564-2380

Missouri
Missouri Regional Poison Center: (800) 366-8888 All Poison Control Centers are coordinated through Cardinal Glennon Memorial Hospital in St. Louis. This facility has a 24-hour Poison Control Hotline staffed by professionals. The Center will refer you to your closest Poison Control Hospital for treatment.

Illinois
Illinois Poison Control Centers Emergency Nationwide: (800) 222-1222 Emergency TTY/TDD: (312) 906-6185

Indiana
Indiana Poison Center: (800) 222-1222, Pesticide Poisoning Indiana Department of Environmental Management: (765) 233-7745, Pesticide Spill Reporting Purdue Pesticide Programs: (765) 494-4566, General Information Office of Indiana State Chemist: (765) 494-1492 Pesticide Certification and Training Environmental Protection Agency Region 5: (312) 886-5220

Nebraska
Nebraska Regional Poison Center: (800) 222-1222 Anyone with a poisoning emergency can call the toll-free telephone number for help. Personnel at the Resource Center will give you first-aid information and direct you to local treatment centers if necessary.

Ohio
Ohio Poison Exposure Centers: (800) 222-1222 TDD number: (800) 253-7955 All calls will be automatically routed to the regional Ohio Poison Exposure Center closest to you. This number should be called to receive medical assistance if you are involved in a pesticide exposure poisoning.

Iowa
Iowa Statewide Poison Control Center Emergency Phone Number: (800) 222-1222 Administrative Phone Number: (712) 279-3710 www.iowapoison.org [email protected] A joint effort by St. Luke’s Regional Medical Center, Iowa Health System and University of Iowa Hospitals and Clinics: 2720 Stone Park Blvd., Sioux City, Iowa 51104

Oklahoma

The Oklahoma Poison Control Center: (800) 222-1222 www.oklahomapoison.org

West Virginia
West Virginia Poison Control Center: (800) 222-1222 Charleston, WV residents may call: (304) 388-4211 Pollution, Toxic Chemical & Oil Spills, National: (800) 424-8802 West Virginia Department of Natural Resources: (800) 642-3074

Kansas
Mid-America Poison Control Center, University of Kansas Medical Center, Kansas City, KS 66103 Phone: (800) 222-1222 Kansas City residents may phone: (913) 588-6633 Emergency TDD: (913) 588-6639 www.kumed.com/poison

Wisconsin
(800) 222-1222 (statewide, emergency) Madison (608) 262-3702 (non-emergency) Milwaukee (414) 266-2222 (non-emergency)

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Fruit Grower Newsletters
Illinois
University of Illinois Extension publishes The Illinois Fruit & Vegetable News. This newsletter covers production practices and insect and disease management. It is available at www.ipm.uiuc.edu/ifvn/ index.html. For information, or to order, contact Rick Weinzierl, Department of Crop Sciences, University of Illinois, AW-101 Turner Hall, 1102 S. Goodwin Avenue, Urbana, IL 61801; phone: (217) 333-6651; e-mail: [email protected].

Nebraska

The University of Nebraska-Lincoln Extension publishes a quarterly newsletter — The Nebraska Vine Lines. This newsletter covers production practices, news of the industry, and insect, disease, and weed management. For information, contact Paul Read, Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE 68983-0724; phone: (402) 472-5136.

Indiana

Ohio

Purdue Extension offers Facts for Fancy Fruit, a fruit grower newsletter issued at frequent intervals during the fruit season to Indiana growers by first class mail for $15 a year. This service supplies timely information on disease and insect activity throughout the state, cultural information, and announcements of upcoming meetings. The newsletter also is available at www.hort.purdue.edu/fff and through e-mail. Send your name, address, and present fruit interests along with a check for $15, made out to Purdue University to: Facts For Fancy Fruit, Department of Horticulture and Landscape Architecture, 625 Agricultural Mall Drive, Purdue University, West Lafayette, IN 47907-2010.

The Ohio Grape-Wine Electronic Newsletter (O-GEN) is available at www.oardc.ohio-state.edu/grapeweb/ OGEN/ogen.htm. To subscribe to O-GEN, e-mail [email protected].

Oklahoma

A Cooperative Extension newsletter, Kentucky Fruit Facts, is issued monthly to all Kentucky growers at no cost. This service supplies timely information on disease and insect activity throughout the state, as well as cultural information. To obtain this service, send your name, address and present fruit interests to: Kentucky Fruit Facts, c/o John Strang, Department of Horticulture, N-318 Ag. Sci. Bldg. North, University of Kentucky, Lexington, KY 40546-0091; phone: (859) 257-5685; fax:(859) 257-2859; e-mail: jstrang@ uky.edu. Kentucky Fruit Facts is also available at www.ca.uky.edu/fruitfacts.

Kentucky

Oklahoma State University Cooperative Extension publishes a quarterly newsletter on grape management issues related to Oklahoma called Le Vigneron. This newsletter covers vine management, insect and disease control topics, and other information relevant to grape growers. For information contact Eric T. Stafne, Department of Horticulture and Landscape Architecture, Oklahoma State University, Stillwater, OK 74078; phone: (405) 744-5409; e-mail: [email protected]. The newsletter also is available at: www.grapes.okstate.edu/levigneron.html.

Pesticide Drift Communication Tools
Several states involved in this spray guide have Webbased mapping tools that enable producers of pesticide sensitive crops avoid drift injury by communicating with agricultural chemical applicators. Driftwatch.org serves the EPA Region 5 states of Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin. Oklahoma’s Pestidice Drift Risk Advisor can be accessed through the Agweather website at agweather. mesonet.org. Nebraska has a similar tool at www.agr.state.ne.us/ division/bpi/pes/psci.htm. Check with the state department of agriculture in your state about similar tools. A rating of 2,4-D and dicamba sensitivity of grape cultivars has been added to Table 4 to help growers avoid planting highly sensitive cultivars in regions with large acreages of corn and soybeans.

Missouri

The Institute for Continental Climate Viticulture and Enology (ICCVE) at the University of Missouri in Columbia publishes a quarterly electronic newsletter, The Midwest Winegrower. The newsletter includes educational articles on grape growing and winemaking; insect, disease, and weed management; industry news; and notices of events in the region. Those interested in receiving the newsletter should contact Andy Allen at: ICCVE, 108 Eckles Hall, University of Missouri, Columbia, MO 65211-5140; phone: (573) 882-6752; e-mail: AllenRA@missouri. edu.

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Foreword
Commercial fruit production has become a highly skilled, technical profession. Concerns about pesticide residues, operator risks, and the environment dictate that all fruit growers exercise extreme caution in the use of all pesticides, and indeed, all chemicals. The Environmental Protection Agency (EPA) has designated a number of fruit pesticides as “restricted use.” Growers who plan to use these restricted materials must be certified as private applicators. Certification requires that applicators understand the following: labels and labeling, safety factors, potential environmental concerns, identification of common pests encountered, pesticides and their use, proper equipment use, application techniques, and applicable state and federal regulations. Training programs are offered to help you in certification. Contact your county Extension office for information. The pest management recommendations in this guide have been formulated to provide you up-todate information on pesticides and their applicability to your problem. It is suggested that you use this information to set up your own spray program. You should keep accurate records of materials used, dates of application, areas treated, stages of growth, and weather conditions. Pages 73 and 74 of this guide contain sample record sheets. In case of questions, nothing beats a good set of records. Records are required by EPA for Restricted Use Pesticide applications. Some states may require records for general use pesticides (e.g., Kentucky has this requirement).

8. For maximum safety, get an appropriate blood test before the season starts and test periodically during the season. 9. Consult a doctor immediately if unusual symptoms develop during or after spraying. Symptoms such as blurred vision, nausea, headaches, chest pains, weakness, diarrhea, or cramps indicate possible pesticide poisoning. 10. Wash hands thoroughly before eating or smoking. 11. Bathe and change clothes daily, and wash contaminated clothing separate from other laundry. 12. Always store a pesticide in its original container, never in an unmarked container. Never trust your memory. 13. Always store pesticides under lock and key and keep them away from children. 14. Always use an anti-siphon device when filling the spray tank from a domestic water source. 15. The label is the law. Read and follow all label instructions carefully.

Management Tips for Safety
1. Maintain accurate spray records. Show application rates, pesticides used, total gallonage, area treated, stage of plant development, and weather data. 2. Be prepared to show your records to the EPA or state regulatory officials if necessary. 3. Do not contaminate forage crops or pastures. 4. Do not allow animals to graze fruit plantings. 5. Prevent excess drift. 6. Maintain equipment in top condition. 7. Protect children, pets, livestock, and the environment from pesticide contamination. 8. Follow all label instructions on re-entry times for pesticides. Regulations mandate re-entry times for all pesticides. Sprayed areas must be posted so workers will not enter before the re-entry time without the required protective clothing. Re-entry times and the required protective clothing are listed on product labels and in tables in this guide. 9. Inform all workers of re-entry restrictions and information on safe pesticide use and/or training to meet OSHA requirements. 10. Comply with the Right-To-Know law. Have complete product labels readily available for workers to see. Have the Material Safety Data Sheet (MSDS) for each product you use available for workers to see and for rescue or fire personnel to use in case of emergency.

Handling Pesticides
1. Know the pesticide toxicity and act accordingly. 2. When mixing pesticides do not breathe the dust, powder, or vapor. Always mix outdoors. 3. Do not smoke, eat, or drink when handling or applying pesticides. 4. Stay out of drift from spray or dust. 5. Rinse liquid containers with water at least three times and pour rinsate into spray tank as it is being filled. Punch holes in metal and plastic containers and crush. Dispose of these and all other pesticide containers where there will be no contamination of crops or water supply. Do not re-use pesticide containers. 6. Use an adequate respirator and protective clothing, especially when mixing pesticides. Necessary protective equipment is listed on pesticide labels. 7. Have a “buddy” around when using acutely toxic organophosphates, just in case.

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11. Provide pesticide safety training for pesticide handlers and other workers to comply with Worker Protection Standards (WPS). 12. Regularly inspect and maintain personal protective equipment used when applying pesticides.

Pesticide Use and the Law
Pesticides are developed by manufacturers, registered with EPA, and sold to the public with the assumption that users read, understand, and follow instructions found on product labels. Specific information on use, personal protective equipment, environmental precautions, and storage and disposal are found on pesticide labels. The purpose of the label is to provide clear directions to allow maximum product benefit while minimizing risks to human health and the environment. Every pesticide label includes the statement, “It is a violation of federal law to use this product in a manner inconsistent with its labeling.” This language obliges purchasers or users of any pesticide to assume all legal responsibilities for the product’s use. Further, courts and regulators recognize that pesticide labels are binding contracts that require those using the products to do so exactly as directed. Terms such as “must,” “shall,” “do not,” and “shall not” mean users are responsible for specific actions when applying or handling a given product; any departure from such directions is, in the eyes of the law, an illegal use of the pesticide. “Use” means more than just applying the pesticide. Federal and state regulations define pesticide use to include handling, mixing, loading, storing, transporting, and disposing, as well as human and environmental exposure. This all-encompassing definition covers every activity that involves a pesticide — from purchase to container disposal. The pesticide label is more than just a piece of paper. It serves a dual function: the label instructs users how to use the product safely and effectively, and it serves as a legal measuring stick. Many statements on the label result from rigorous scientific investigations and governmental regulatory decisions. Pesticide users should read, understand, and follow pesticide label directions to ensure effective pest control, personal safety, environmental protection, and legal compliance. Pesticide labels include two very important statements:

Re-entry or restricted entry interval (REI) statements contain re-entry precautions and state a time interval during which entry into a pesticidetreated site is not allowed. The statement indicates the length of time that must elapse after the pesticide application before individuals may enter the treated area without personal protective clothing and equipment. Pre-harvest interval (PHI) statements indicate the time interval that must elapse after the pesticide application before the crop may be harvested. Harvesting prior to the PHI may result in dangerous and illegal pesticide residues on the crop.

Determining Spray Volume and Rate
Small fruit plantings are sprayed with insecticides, fungicides, growth regulators, and nutrient solutions in many different formulations and concentrations and at various stages of plant development. The principal targets in spraying may be the foliage, flowers, fruit, woody surfaces, or all these components. Obviously, the equipment and methods used for such a diverse spraying program must be versatile, and the equipment must be properly calibrated for each type of application to produce the desired results.

Dilute Spraying
The objective of spraying is to distribute the spray material uniformly over the plants or plant parts of particular concern. Pesticide recommendations are based on the amount of dilute spray needed to wet plants thoroughly, to the point of “runoff.” In typical blueberry, raspberry, or grape plantings with plants 5 to 7 feet tall and 3 to 5 feet wide and set in rows 9 to 10 feet apart, and in most strawberry plantings, 200 gallons of water per acre has been established as a standard dilute spray volume for fungicide and insecticide application. This dilute rate is considered a 1x concentration.

Low Volume Spraying
Low volume, or concentrate, spraying refers to the use of less water per acre in applying pesticides. In low volume spraying, the volume of water applied per acre is reduced in proportion to the increased concentration of pesticide used by 2x, 3x, 4x, or more. Thus, a 3x rate uses a 3x concentration of pesticide in only onethird the water per acre that would be used in dilute spraying.

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Low volume sprays must be applied with air-assisted sprayers that use a high velocity airstream to distribute the spray mixture. Most conventional air-assisted sprayers can be used to apply spray mixtures up to 6x concentration. Sprayers specifically designed for ultra low volume application should be used for applications up to 10x. Using low volume sprays requires less labor, less water, less time, and fewer refills than 1x or dilute mixtures. However, low volume sprays have disadvantages. Here are some precautions to follow when making low volume pesticide applications: 1. Use extreme care in calibrating the sprayer and maintaining a constant sprayer speed. As gallonage is decreased, errors become much more critical. 2. Choose calm, yet good drying conditions for spraying. This may mean spraying at night or early in the morning. Good coverage cannot be achieved in windy conditions (over 5 mph). 3. Prune plants well to create an open canopy for spray penetration. Spray droplets will not penetrate dense foliage. 4. Choose pesticide formulations that will mix satisfactorily. Pay careful attention to increased operator hazards and drift problems.

Step 3. Select density factor. Select one of the following numbers that best indicates the canopy density of each separate planting. 0.70 gal/1,000 cu ft: Plants extremely open, light visible through entire canopy. 0.80 gal/1,000 cu ft: Plants well pruned, with moderate vigor, adequate light penetration into canopy, many holes in foliage where light can be seen through plant.

0.90 gal/1,000 cu ft: Plants pruned minimally, or with high vigor, poor light penetration into canopy, very few holes where light can be seen through plant. 1.00 gal/1,000 cu ft: Plants unpruned, extremely dense, no light visible anywhere through canopy Step 4. Calculate TRV gallonage/acre. cu ft of TRV/acre x (from Step 2) 1,000 density (from Step 3)

= gallons of dilute solution to be applied per acre = TRV gal/acre Example
A vineyard has rows spaced 10 feet apart, the canopy height is 6 feet, and the cross row spread is 4 feet at full canopy. The density factor is 0.90. Step 1 43,560 sq ft ÷ 10 ft = 4,356 ft of row/acre Step 3 Density has been chosen as 0.90. Step 2 4,356 x 6 ft x 4 ft = 104,544 cu ft TRV/acre Step 4 [104,544 x .90] ÷ 1,000 = 94 TRV gal/acre

Tree Row Volume Spraying
Tree row volume (TRV) is a method originally used with orchard crops to determine the dilute (1x) volume of spray solution necessary to cover the entire plant surface for any given fruit planting. TRV is an objective method for determining the spray volume required for plants of different sizes, and for changes in canopy size as plants develop during the season. With the TRV method, the volume of dilute spray needed per acre can be easily calculated for each planting based on plant size and density. To determine the TRV, the between-row spacing, maximum plant height, and cross-row plant spread must be accurately measured. See the step-by-step procedure below.

Spraying Small Volumes
In some cases the grower may wish to apply small volumes of pesticides with backpack or hand-held sprayers or wipers. The following table will help make the conversion from rate per 100 gallons to rate per gallon. Care should be taken to measure pesticide amounts accurately because errors will be magnified at small volumes.

Calculate Tree Row Volume Gallonage
Step 1. Calculate feet of row/acre. 43,560 sq ft/acre between-row spacing (ft) = feet of row/acre

Calibrating Single Nozzle and Boom Sprayers
Calibration is an essential step in the use of any application equipment. For boom sprayers, a satisfactory spray pattern can be achieved only if the output from individual nozzles does not differ more than 10%.

Step 2. Calculate cu ft of TRV/acre. Feet of row/acre (from Step 1) x plant height (ft) x cross-row plant spread (ft) = cu ft of TRV/acre.

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Owner’s manuals for sprayers contain specific instructions for calibration and adjustment. A good time to calibrate is in early spring, right after the sprayer has been reassembled and is being readied for early season operations. Check for worn disks and be sure that all nozzle tips have the same angle and capacity rating. The use of wettable powder sprays enlarges nozzle openings, so calibration of each nozzle is essential. Use only clean water when calibrating sprayers. Start the season with a calibrated sprayer, and depending on the number of gallons sprayed and the cleanliness of the water you have used, calibrate the sprayer again according to intervals specified in the owner’s manual (or no later than halfway through the spray season).

Step 6. Multiply the average (Step 5) by 5% (0.05). Step 7. Subtract this figure (Step 6) from the average (Step 5). This will be the lower limit of the 10% allowable spread. Step 8. Add the 5% figure (Step 6) to the average (Step 5). This will be the upper limit of the 10% allowable spread. Step 9. The allowable 10% spread is between the low figure (Step 7) and the high figure (Step 8). Step 10. Compare the output of each nozzle to these low and high figures. a. Take apart and clean or replace all nozzles with outputs less than the lower limit. b. Replace all nozzles with outputs greater than the upper limit.

To Check Nozzle Uniformity
Follow these steps to check nozzle uniformity: Step 1. Hang a container under each nozzle. Step 2. Operate the sprayer at the usual application pressure until about a pint of water has been collected in each container. Step 3. Measure and record the output of each nozzle. Measurements can be made by a “dip stick” method, but using a graduated cylinder with indications for fluid ounces or milliliters is better. Step 4. Determine the total output collected from all nozzles. Step 5. Determine the average per nozzle by dividing the total output by the number of nozzles on the boom.

Step 11. After cleaning or replacing nozzles, repeat steps 1 through 10 to make sure your repairs have been successful. Output of new nozzles often fails to match the average of existing nozzles.

Spray Pattern Alignment
Single and double spray patterns can be aligned on a paved drive or other flat surface. The edges of a single spray pattern should overlap slightly and be offset just enough so that the sprays from adjacent nozzles do not collide. Alignment of nozzles in a double spray or double overlap pattern requires that adjacent nozzle angles be offset slightly so that the area to be treated receives spray from two nozzles, yet the spray patterns do not

Approximate Dilutions for Small Volumes of Spray Mixes
Equivalent rates for different quantities of water Formulation 100 gallons 5 pounds 4 pounds 3 pounds 2 pounds 1 pound 1/2 pound (8 oz) 5 gallons 4 gallons 3 gallons 2 gallons 1 gallon 1 quart 1 pint 5 gallons 15 tablespoons 13 tablespoons 10 tablespoons 8 tablespoons 3 tablespoons 5 teaspoons 1 quart 1 1/2 pints 1 1/4 pints 3/4 pint 1/2 pint 3 tablespoons 5 teaspoons 3 gallons 9 tablespoons 8 tablespoons 6 tablespoons 4 tablespoons 6 teaspoons 1 tablespoon 1 1/4 pints 1 pint 3/4 pint 1/2 pint 8 tablespoons 2 tablespoons 1 tablespoon 1 gallon 3 tablespoons 8 teaspoons 2 tablespoons 4 teaspoons 2 teaspoons 1 teaspoon 13 tablespoons 10 tablespoons 8 tablespoons 5 tablespoons 3 tablespoons 2 teaspoons 1 teaspoon

Wettable Powder, Dry Flowable, etc.

Emulsifiable Concentrate, Liquid

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collide. Remember, a double or overlapping spray pattern will use twice as much spray per acre as a single spray pattern if pump pressure and sprayer speed remain the same. A double spray pattern is most useful for treating dense or tall vegetation.

For example, if it requires 60 seconds to travel a measured distance of 176 feet, the travel speed is: mph = 176 x 60 60 x 88 = 10,560 5,280 = 2 mph

Calibration of Air-blast Sprayers
Accurate calibration is the only way to ensure that a sprayer is applying the intended amount of chemical. The operator must know the amount of water that will be applied per unit of area in order to make a proper spray mix. Failure to calibrate a sprayer can result in crop injury, creation of a hazardous situation, and wasted money. Frequent calibration identifies worn nozzles and keeps the operator aware of factors affecting application rate, such as travel speed, pressure, and type of nozzle in use.

Determining Nozzle Flow Rate
To select the correct nozzle and whirlplate sizes, the total gallons per minute (gpm) of output for each particular application must be determined. To determine gpm, it is necessary to know the travel speed of the sprayer (mph), the gallons per acre (gpa) to be applied, and the spacing (W) between the rows of plants. Once these three variables are measured or selected, a simple equation can be used to calculate the gpm. This equation is for one side of the sprayer manifold only. Double the calculated answer if both sides of the sprayer are to be used. Once the nozzle and whirlplate combinations are determined, place the same size nozzles and whirlplates in both sides of the sprayer if both sides are to be used. Step 1. Calculate the total gpm required per side: gpm (per side) = gpa x mph x W 1,000

Precalibration Check
Before calibrating, check the sprayer carefully. Be sure the nozzle tips are clean. Replace all worn or damaged nozzles. Check all hoses and fittings for leaks and aging. Make sure the pressure is constant and the tank is free of dirt and debris.

Determining Sprayer Speed
The rate of travel needed for proper distribution of spray within the canopy can be determined by trial by placing water sensitive spray paper at various locations within the trellis. For proper pesticide application, the air within the canopy must be completely replaced with spray-laden air from the sprayer. In general, a travel speed of 1 to 3 miles per hour has proved satisfactory, depending on the size and density of the canopy, and capacity of the sprayer. Before a sprayer can be calibrated, the travel speed must be determined in miles per hour (mph). To determine the travel speed, load the sprayer with clear water and make a test run in the vineyard. Always make the test run in the vineyard or on similar ground as tractor speed changes dramatically from soft to firm surfaces. Set the tractor throttle at a level sufficient to operate the sprayer (pto speed) and select an appropriate gear. Remember or mark these settings. Speed can be calculated by measuring the time required to travel any measured distance. A good conversion factor to remember is that 1 mph=88 feet/ min. A convenient test length is 176 feet because it is a multiple (2x) of 88. The following formula can be used to determine travel speed: Speed (mph) = distance (ft) x 60 time (sec) x 88

gpm = gallons per minute (per side) gpa = gallons per acre mph = speed (in miles per hour ) W = spacing between rows (in feet) Example: You have decided to apply 70 gpa while traveling 2 mph, and the rows are spaced 10 feet apart. What is the gpm per side? gpm = 70 x 2 x 10 1,000 = 1,400 1,000 = 1.4 gpm



Step 2. Select the correct nozzle-whirlplate combination and operating pressure. Air-blast sprayers normally use disk-core-type cone spray tips. The correct size nozzles and whirlplates can be selected by using a table, which indicates the nozzle size and gallons per minute output at various pressures using specific whirlplates. These tables can be found in the sprayer manufacturer’s literature or in nozzle catalogs. Nozzles in the sprayer manifold should be arranged so approximately 2/3 of the total flow comes from nozzles in the upper half of the manifold, and 1/3 of the total flow comes from nozzles in the lower half. Adjust nozzles this way to provide uniform coverage throughout the canopy. It should provide adequate penetration to the top and center of the canopy while avoiding excess application in the lower outside areas.

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Step 3. Install the nozzles in their proper outlets. Inspect and clean all nozzles and outlets and determine that the sprayer is operating correctly. Nozzles are a very important part of the sprayer; if any defects or wear are showing in the nozzles, replace them. Step 4. Measure the total gpm from all the nozzles selected in Step 2. Fill the sprayer tank at least half full. Prime the sprayer system and check all the nozzles to make sure none are clogged or partially clogged. Record the exact level of water in the spray tank. Bring the sprayer up to the desired pressure and turn the nozzles on. Use a stopwatch to record how long the sprayer is running. The sprayer should be operated for at least three minutes. Record the new level in the tank or measure the amount of water needed to refill the tank to the original level. Example: The spray tank is filled to the 100-gallon level. It was predetermined from the manufacturer’s tables that the nozzles selected would give a total output of 4 gpm. The sprayer was operated for five minutes at 150 psi on the gauge. After the five minutes, the sight gauge read 75 gals. The actual output was: 100 gals (start) - 75 gals (stop) =25 gal per 5 min=5 gpm The theoretical output from table information, however, was 4 gpm. When actual output differs from the calculated output, make adjustments by changing the pressure (when the difference is small) or changing the nozzle sizes (when the difference is large). Experiment with the pressure to see if the output can be fine tuned. Refer to manufacturer’s tables for recommended operating pressures for nozzles. Never operate above or below recommended pressures. Repeat these calibration procedures whenever changes are made in the speed, gallons per acre, or row spacing. Periodically check the output from the nozzles during the spraying season. Remember, the effectiveness of the spray material is directly dependent on your skill as an operator. Field test to confirm calculations: gpa (gallons per acre) = gal. sprayed x 43,560 ft distance traveled (ft.)
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Spray Water pH
Several pesticides break down rapidly in alkaline water. In a matter of hours (or, in extreme instances, only minutes), 50% or more of the active ingredient may be hydrolyzed to yield a less active compound. Captan, Cygon, Imidan, Kelthane, Malathion, and Omite are examples of compounds that are especially vulnerable to alkaline hydrolysis. Both well and pond water in the Midwest tend to be alkaline (pH above 7.0). To ensure the maximum effectiveness of pesticide applications, check the pH of spray mixes in the spray tank and add buffering agents if necessary to adjust the pH to neutral (7.0). Buffering agents include Buffercide, Buffer-X, Unifilm B, and LI 700 Acidiphactant. Granulated food grade citric acid may be the most convenient and inexpensive acidifying material. Two ounces per 100 gallons has been shown to reduce the pH of tap water from 8.3 to 5.4. Convenient granulated food grade citric acid measures are: per 100 gal per 300 gal per 500 gal 1/4 cup, slightly rounded 3/4 cup, rounded 1 1/3 cups

Granulated food grade citric acid is available in 50pound bags from suppliers that handle food grade chemicals. Do not try to acidify solutions containing Bordeaux mixture, fixed copper, or other copper compounds.

Spray Adjuvants
Several types of additives are available to improve the effectiveness of spray applications. Known collectively as adjuvants, they include: Activators increase a pesticide’s effect by increasing the penetration of a spray solution through leaf hairs or a waxy cuticle and into a leaf or fruit. Acidifiers lower the pH of alkaline spray water to reduce the potential breakdown of certain pesticides in the spray tank. Buffers change the pH of spray water, then hold it at the desired degree of acidity. De-Foamers, when added to the spray tank, break down or prevent the formation of foam. Elasticizers or Drift Control Agents reduce the breakup of spray droplets into very fine particles and thereby minimize drift. Surfactants, Spreaders, and Wetting Agents are different names for products that reduce the surface tension around a spray droplet, allowing it to spread out more evenly on the surface of a leaf or fruit.

Example: A field test is run in which 10 rows, each 200 feet long, were sprayed. Row spacing was 10 feet. It took 35 gallons to refill the sprayer to the original level. What was the gpa? 35 gal x 43,560 ft2 2,000 ft x 10 ft = 76 gpa

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CAUTION: Some surfactants used in combination with certain pesticides can function as activators, causing plant injury. Consult labels or chemical suppliers for more information. Stickers cause a pesticide to stick to the surface after the spray dries, thereby reducing the potential for loss from rain or overhead irrigation. Spreader-Stickers is a term commonly misused when referring to a surfactant or spreader. A true spreadersticker combines the characteristics of a surfactant with that of a sticker. Caution: Do not use an adjuvant with any pesticide without first consulting the specific pesticide label. Improper selection or use can result in crop injury or reduced effectiveness, particularly when adjuvants are mixed with emulsifiable concentrates.

In this list, the use of “or” means only one of the six recommended materials should be applied at the specified rates. 2. “OR” is used to indicate a change to a completely different group of fungicides options; “plus” indicates the use of two fungicides in a tank mix where you select one fungicide from above the plus and combine it with another fungicide from below the plus. For example, see the list of recommended materials below for simultaneous control of Phomopsis cane and leaf spot, powdery mildew, downy mildew, and black rot.

Tips on Using This Spray Guide
This guide lists recommended materials for the common disease and insect pests of grapes and small fruit. These recommendations cover the various options available to growers. Using all listed materials is not recommended. Rather, growers are advised to appropriately use one or more of the various options. Growers should consult a text, such as the Midwest Small Fruit Pest Management Handbook (see inside front cover) to gain a thorough understanding of each pest and appropriate control measures. This spray guide lists pests, recommended control measures, and comments by growth stage through the growing season. It is important that users understand the material listings and the various uses of the word “or.” There are two uses of the word “or’ in this text, particularly in regard to fungicides for disease control: 1. “or” is italicized and placed below a material when different materials can be used to control the same disease, but only one of the suggested materials should be used. For example, see the recommended materials for control of Black rot, Phomopsis cane and leaf spot, and Downy mildew on page 1. Mancozeb 75DF or Captan 50WP or Ziram 76DF or Abound 2.08F or Sovran 50WG or Pristine 38WG

Mancozeb 75DF plus Sulfur or JMS Stylet oil OR Balyeton 50WP or Rally 40WSP plus Mancozeb 75DF or Captan 50WP
This means to use one of the two major options: a. The combination of mancozeb plus either sulfur or JMS Stylet oil. OR b. Either Bayleton or Rally plus either Mancozeb or Captan. The reasoning behind this recommendation (in the example above) is that in option 1, Mancozeb provides excellent control of Phomopsis, black rot, and downy mildew, but provides no control of powdery mildew. Sulfur and JMS Stylet oil both provide excellent control of powdery mildew. By combining Mancozeb with sulfur or stylet oil, all of the major diseases are controlled simultaneously (Phomopsis, powdery mildew, downy mildew, and black rot.) In option 2, Bayleton and Rally both provide excellent control of powdery mildew and black rot, but provide no control of Phomopsis or downy mildew. By combining Bayleton or Rally with Mancozeb or Captan, all of the major diseases are controlled simultaneously.

ix

Summary
Pesticide recommendations may seem confusing to the novice because there are so many options for materials to use for certain diseases or insect pests. For this reason, we strongly recommend that growers refer to the Midwest Small Fruit Pest Management Handbook (see front inside cover) to develop a thorough understanding of pest management. With fungicides in particular, a single material may control one or more diseases, but not all. So, when several diseases are a threat, a combination of materials may be required for control. Additionally, insect pests may be a problem at the same time, so insecticides may be needed. In most cases, multiple fungicides and insecticides can be tank mixed together and applied at one time. In most cases there are no problems mixing materials, however, certain materials are incompatible with each other. Refer to the comments sections in this guide, and the pesticide label for recommendations. Most problems are associated with using copper or sulfur fungicides in combination with, or relatively soon after applications of oils. These instances are fairly rare. Problems may occur when tank mixing products of different formulations, such as emulsifiable concentrates and wettable powders. Most pesticide labels give instructions on loading, tank mixes, etc., and we recommend that growers follow the label directions closely to avoid problems.

Certain fungicides and insecticides may be phytotoxic (cause foliar damage) to certain crops and/or varieties. For example, many grape varieties are sensitive to sulfur or copper. Table 4 on page 22 lists variety sensitivity to these materials. Additionally, some grape varieties are sensitive to endosulfan insecticide and certain stobilurin fungicides, and some strawberry varieties are sensitive to Sinbar herbicide. Always read the comments associated with the materials in this guide. Pesticide choices can be limited by variety, disease or insect pressure and other factors. Grower preference, experience with materials, and price often influence decisions as well. Pest management in small fruit crops is relatively easy so long as the grower understands the pests, critical periods for control, proper selection of control materials, and proper application procedures. Always read the entire pesticide label. If you have any questions about the proper use of a pesticide, refer to other sources, such as the Midwest Small Fruit Pest Management Handbook. If you still have questions, contact the manufacturer or your state Extension specialist for clarification.

x

Grape Spray Schedule
Note on Disease Control Recommendations
The following information is intended to provide general guidelines for use in developing a fungicide spray program for grapes in the Midwest. This spray schedule presents various fungicide options that growers can consider. The major grape diseases that generally require at least some fungicide application for control on an annual basis include black rot, powdery mildew, downy mildew, and Phomopsis cane and leaf spot. Several recommendations in this guide include tank mixes of different fungicides that are intended to provide a program that will control all of these diseases simultaneously. In some cases, recommendations for a single disease alone are provided as well. Growers who wish to make a fungicide application intended to control only one specific disease, can refer to Table 1, Effectiveness of Fungicides for the Control of Grape Diseases on page 19 of this guide. Please pay special attention to the notes and comments.

Dormant

Apply before buds swell. Pest/Problem

Fungicide Resistance Alert: See note on page 18 on fungicide resistance development in powdery and downy mildew. Lime sulfur solution or Sulforix 10 gal 1 gal This dormant application is aimed at reducing overwintering inoculum on canes. See pages 14-15 for more information on anthracnose.

Material

Rate/Acre

Comments

Anthracnose

Bud Swell
European red mite and/or scale insects Grape scale

Apply just before buds show green. Pest/Problem Material
Superior oil (70-sec.) Lorsban Advanced Baythroid 2E or XL Danitol 2.4EC Flea beetle adults Leverage 2.7SE Renounce 20WP Scorpion 35SL Sevin XLR (4EC)

Rate/Acre
4 gal 1 qt 2.4-3.2 fl oz 5.3-10.7 fl oz 5-8 fl oz 3-4 oz 2-5 fl oz; 9-10.5 fl oz 2 qt

Comments

Scout at least weekly as bud swell occurs. Use lower rate for flea beetle, higher rate for cutworms.

Use the low rate for foliar application; use the high rate for soil application. Other formulations may be available.

Scout at least weekly as bud swell occurs. Same as for flea beetles above, or Altacor 35WDG Belt 4SC Climbing cutworms Brigadier 2EC Danitol 2.4EC Delegate 25WG 3-4.5 fl oz 3-4 fl oz 5.1-6.4 fl oz 10.7-21.3 fl oz 3-5 oz

Lorsban 4E or Lorsban Advanced Tourismo

1 qt 10-14 fl oz

Apply as a spray drench ground application. Do not use now if Lorsban will be used later for root borer.

1

Grape (continued)

Bud Break to Bloom

Begin applications after ½-inch new shoot growth; repeat at 7-10 day intervals or according to label instructions and environmental conditions for disease development. On varieties highly susceptible to powdery mildew, a fungicide for powdery mildew control should be included in these early sprays. Primary infections of powdery mildew can occur during this period. Fungicide Resistance Alert: See note on page 18 on fungicide resistance development in powdery and downy mildew. Pest/Problem Material Rate/Acre Comments
Early sprays for Phomopsis cane and leaf spot are especially critical. Mancozeb and Captan are both very effective for control of Phomopsis. Mancozeb is sold under the trade names Dithane, Manzate, Penncozeb and others. If black rot is a problem in the vineyard, Mancozeb would be the fungicide of choice. Captan is less effective than Mancozeb for black rot control. See Table 1, page 19. Use sulfur with caution. See note on sulfur, page 16. Do not use Captan or sulfur within 2 weeks of applying JMS Stylet Oil, or stylet oil within 2 weeks of a Captan or sulfur application. Mixing Captan or sulfur with oil can result in severe vine damage. Bayleton is not recommended for control of powdery mildew because of reduced efficacy. It is still effective against black rot.

Mancozeb 75DF

3 lb

Sulfur or JMS Stylet Oil OR Bayleton 50WP or Black rot, Phomopsis cane and leaf spot, Powdery mildew, Downy mildew Rally 40WSP or Rubigan 1EC or Vintage SC or Procure 50WS or Elite 45DF or Mettle 125ME or Inspire Super or Endura 70WG or Quintec 2.08F or Potassium salts plus Mancozeb 75DF or Captan 50WP or Ziram 76DF

plus

See comments. 1-2% conc.

2-6 oz 3-5 oz 3 fl oz 3-4 fl oz 4-8 oz 4 oz 3-5 fl oz 16-20 fl oz 4.5 oz 3-4 fl oz See comments. 3 lb 3 lb 3-4 lb

See note on potassium salts, page 18.

The REI for Captan fungicide ranges from 48 hours to 4 days on various products. Always check the label on the Captan product before you purchase it.
Treatment options continued on next page.

2

Grape (continued) Bud Break to Bloom (continued)

Pest/Problem

Material

OR Abound 2.08F or Sovran 50WG or Flint 50WG

Rate/Acre
11-15.4 fl oz 3.2-6.4 oz 1.5-4.0 oz See comments. 4.5 oz 3-4 fl oz

Comments
See notes on Abound, Sovran, Flint, and Pristine, page 16. Do not apply Flint or Pristine to Concord or other American type grapes as injury may occur. Flint is not recommended for downy mildew control. Use sulfur with caution. See note on sulfur, page 16.

Black rot, Phomopsis cane and leaf spot, Powdery mildew, Downy mildew (continued)

plus Sulfur or Endura 70WG or Quintec 2.08F or

Potassium salts OR Pristine 38WG or Quadris Top Captan 50WP or Ziram 76DF or Abound 2.08F or Sovran 50WG or Pristine 38WG or Quadris Top

See comments. 8-12.5 oz 10-14 fl oz 3-4 lb 3-4 lb 3-4 lb 11-15.4 fl oz 3.2-6.4 oz 8-12.5 oz 10-14 fl oz

See note on potassium salts, page 18. Do not apply Flint or Pristine to Concord or other American type grapes as injury may occur.

Mancozeb 75DF or

Black rot, Phomopsis cane and leaf spot, Downy mildew

See notes on Abound, Sovran, and Pristine, page 16.

Do not apply Pristine to Concord or other American type grapes as injury may occur.

Powdery mildew

On varieties that are higly susceptible to powdery mildew, a fungicide for powdery mildew control should be included in these early sprays. Primary infections of powdery mildew can occur during this period. Fungicide Resistance Alert: See note on page 18 on fungicide resistance development in powdery and downy mildew. Rally 40WSP 3-5 oz or Rubigan 1EC Refer to Rubigan label for further information on 3 fl oz or recommended rates. Fenarimol is the active ingredient in Rubigan EC. Vintage SC is a different formulation of fenarimol and is very similar to Rubigan EC. Vintage SC is Vintage SC 3-4 fl oz registered for use on grapes and has less smell (odor) than or Rubigan EC. Procure 50WS 4-8 oz or Elite 45DF 4 oz or Mettle 125ME 3-5 fl oz or See notes on Abound, Flint, Sovran and Pristine, page 16. Abound 2.08F 11-15.4 fl oz or Sovran 50WG or Flint 50WG 3.2-6.4 oz 1.5-4.0 oz

Treatment options continued on next page.

3

Grape (continued) Bud Break to Bloom (continued)

Pest/Problem

Material
plus Sulfur or JMS Stylet Oil or

Rate/Acre
See comments. 1-2% conc. 3-4 fl oz 4.5 oz See comments. 8-12.5 oz 4-7.2 oz

Comments
Use sulfur with caution. See note on page 16. Do not use Captan or sulfur within 2 weeks of applying JMS Stylet Oil, or stylet oil within 2 weeks of a Captan or sulfur application. Mixing Captan or sulfur with oil can result in severe vine damage.

Powdery mildew (continued)

Quintec 2.08F or Endura 70WG or Potassium salts OR Pristine 38WG or Adament 50WG

See note on potassium salts, page 18. See notes on Abound, Flint, Sovran and Pristine, page 16. Do not apply on Concord grapes. See notes on page 17.

Downy mildew

Fungicide Resistance Alert: See note on page 18 on fungicide resistance development in powdery and downy mildew. Ridomil Gold MZ 2.5 lb See comments on the use of Ridomil for downy mildew or control, page 15. Ridomil Gold Copper 2 lb or Phosphorous acid See See comments on use of phosphorous acid for downy or comments. mildew control, page 15. Mancozeb 75DF 3-4 lb or Captan 50WP 3-4 lb or Ziram 76DF 3-4 lb or Abound 2.08F 11-15.4 fl oz See comments on Abound, Sovran, and Pristine, page 16. or Do not apply Pristine on Concord or other American type grapes as injury may occur. Sovran 50WG 3.2-6.4 oz or Pristine 38WG 8-12.5 oz or Presidio 4L 3-4 fl oz or Revus 2.08L 8 fl oz Adding a spreading/penetrating type of adjuvant (such as a or nonionic-based surfactant or crop oil concentrate or blend) is recommended. Ranman or Forum or Fixed Copper 2.1-2.75 fl oz 6 oz See comments. See comments on copper use, page 17-18.

Flea beetle, Climbing cutworm Grape phylloxera

Same as for bud swell spray Admire Pro 7-14 fl oz Admire Pro is soil-applied for systemic control. Use if there is history of leaf galling. Apply from bud swell until the first expanded leaf to be sure the chemical is available as soon as roots begin taking up water, because it takes several weeks for the chemical to get to the leaves.

4

Grape (continued)

Ten-inch Shoots
Flea beetle larvae

Apply when new shoots are about 10 inches long. Pest/Problem Material Rate/Acre

Rose chafer

Redbanded leafroller

European red mite

Same as for bud swell Flea beetle larvae may be present any time between 4- and spray 10-inch shoot growth and bloom. Rose chafer may be present any time between 4- and 10-inch shoot growth and bloom. Assail 30SG 2.5 oz Danitol 2.4EC 10.7 fl oz Imidan 70 WP 1.3-2.1 lb Sevin XLR(4EC) 2 qt Other formulations may be available. Redbanded leafroller may be present any time between 4- and 10-inch shoot growth and bloom. Belt 4 SC 3-4 fl oz Danitol 2.4EC 10.7 fl oz Delegate 25 WG 3-5 oz Entrust 80WP 1.25-2.5 oz Intrepid 2F 10-16 fl oz Sevin XLR(4EC) 2 qt Other formulations may be available. SpinTor 2SC 4-8 fl oz Acramite 50 WS 1 lb Apollo 1 SC 4-8 fl oz Envidor 2SC 16-18 fl oz Kelthane 50WP 2.5 lb Kelthane use is illegal in Wisconsin. Nexter 75WP Onager 1EC Zeal 72WP Portal, Fujimite 4.4-5.2 oz (1-1.5 bags) 12-24 fl oz 2 pt 2-3 oz 6-8 oz See Movento label regarding adjuvants.

Comments

Grape phylloxera (leaf form)

Movento 2EC

Pre-bloom

Apply just before bloom. Note on Critical Period for Disease Control: The period from immediate pre-bloom to four or five weeks after bloom is the most critical period to control fruit infections by the black rot, powdery mildew, and downy mildew pathogens. Fungicide protection during this period is critical. Research in New York has shown that the fruit of most varieties is resistant to all three of these diseases by four weeks after bloom. Beyond four to five weeks after bloom, black rot should no longer be a problem. Although fruit becomes resistant to powdery and downy mildews, the cluster stems (rachis) and leaves remain susceptible. Therefore, fungicide protection against powdery and downy mildews may be required throughout the growing season. Pest/Problem
Flea beetle larvae, Rose chafer, Redbanded leafroller*, Grape berry moth*

Material
Same as for 10-inch shoot spray

Rate/Acre

Comments
*Pheromone traps for grape berry moth and redbanded leafroller will indicate if they are present and help determine the need for control. Not a common pest in most of the Midwest. In southern areas, flag scale-infested vines during dormant pruning. In early May begin weekly inspections of flagged vines for scale crawlers. Lift live adult scale covers and look for yellow moving crawlers (use a hand lens with 10x magnification). Protect canes by applying sprays every 10 days as long as you see moving crawlers (2-3 week crawler emergence period).

Grape scale

Malathion 8F

2-2.5 pt

5

Grape (continued) Pre-Bloom (continued)

Pest/Problem

Material

Rate/Acre

Comments

Control the root gall form of grape phylloxera by using rootstocks derived from American grapes. Native American grapes (Eastern U.S.) are highly resistant to this pest. Since bees do not pollinate grapes, there is no danger to bees at this time unless they are working on other blooming plants in the area being sprayed. Mow before spraying to eliminate blooms on weeds. Assail 30SG Grape phylloxera (leaf form) Danitol 2.4EC Endosulfan 3EC Thionex 50WP 2.5 oz 10.7 fl oz 1.33 qt 2 lb Apply at pre-bloom and repeat 10-14 days later. Apply at pre-bloom and repeat 10-14 days later. Apply at pre-bloom and repeat 10-14 days later. Endosulfan or Thionex can severely injure Concord, Baco Noir, Chancellor, Colobel, Cascade, Cynthiana/Norton, Chambourcin, and other cultivars. Refer to product label. EC formulations are more likely to cause phytotoxicity than WP formulations.

Voliam Flexi 40SG

4.5 oz

Bloom

Apply when caps begin to fall. Pest/Problem
Black rot, Phomopsis cane and leaf spot, Powdery mildew, Downy mildew Downy mildew Powdery mildew Grape scale

Material

Rate/Acre

Comments
If wet weather persists during bloom or if the interval between the pre-bloom and shatter spray is greater than 7-10 days, a fungicide application during bloom may be necessary.

Same as bud break to bloom, see page 2 Same as bud break to bloom, see page 4 Same as bud break to bloom, see pages 3-4 Same as pre-bloom, see page 5

Botrytis bunch rot

This spray is critical in vineyards or on varieties (especially French hybrids or Vinifera) where Botrytis bunch rot has been a problem. See note on Botrytis bunch rot control on page 15. Apply Topsin M at 1-1.5 lb/A at first bloom (no later than Topsin M WSB 5% bloom), and repeat 14 days later if severe disease 1-1.5 lb or conditions persist. Topsin M is also available in 70WDG and 4.5 FL formulations. Rovral may be applied at 1.5-2.0 lb/A four times: 1. Early to midbloom; 2. Prior to bunch closing; 3. Beginning of Rovral 50WP 1.5-2 lb fruit ripening; 4. Prior to harvest if needed. or Do not make more than 4 applications of Rovral per season. Do not apply within 7 days of harvest. Vangard 75WG or Vangard is registered for use at 10 oz/A when used alone, or at 5-10 oz/A when used in a tank mix. Timing of application is approximately the same as for Rovral. No more than 20 oz of Vangard may be applied per acre per crop season. Vangard cannot be applied within 7 days of harvest.

10 oz

Elevate 50WG or

1 lb

Elevate may be applied at 1 lb/A and the timing of application is approximately the same as Rovral and Vangard. No more than 3 lb of Elevate may be applied per acre per season. Elevate can be applied up to, and including, the day of harvest (0-day PHI).

Treatment options continued on next page.

6

Grape (continued) Bloom (continued)

Pest/Problem
Botrytis bunch rot (continued)

Material
Scala 5SC or Switch 62.5WG

Rate/Acre
18 fl oz

Comments
Scala is registered for use at 18 fl oz alone, or at 9 fl oz when used in a tank mix. Timing of application is approximately the same as for Rovral. Switch is also registered for control of sour rot (caused by a fungal complex). Preharvest applications may be beneficial for control of sour rot. See the label for additional information.

11-14 oz

Shatter

Apply when unfertilized berries fall from clusters, about 7-10 days after bloom or 7-10 days after last spray. Pest/Problem
Black rot, Phomopsis cane and leaf spot, powdery mildew, downy mildew

Material
Same as bud break to bloom, see page 2

Rate/Acre

Comments

Pheromone traps offer help in determining presence and timing of grape berry moth. Berry moth emergence begins in late May and June; there may be three generations per year. Altacor 35WDG 2-4.5 oz Avaunt 30WG 5-6 oz Baythroid 2E or XL 2.4-3.2 fl oz Belay 2.13SC 6 fl oz Belt 4SC 3-4 fl oz Brigade 2EC 3.2-6.4 fl oz Brigade 10WP (WSB) 8-16 oz Brigadier 2EC 5.1-6.4 fl oz See Table 11 on page 48 for a list of products that contain Bt (Bacillus Bacillus thuringiensis. See individual product labels for thuringiensis) rates and application details. Clutch 50WDG Danitol 2.4EC Delegate 25WG Diazinon AG500 (4EC) 3 oz 10.7 oz 3-5 oz 1-2 pt

Grape berry moth

Entrust 80WP Imidan 70WP Intrepid 2F Isomate GBM Lannate SP Lannate LV Leverage 2.7SE Renounce 20WP Sevin XLR (4EC) Sevin 4F SpinTor 2SC Tourismo Voliam Flexi 40SG

1.25-2.5 oz 1.3-2.1 lb 4-8 fl oz 400 ties 0.5-1 lb 1.5-3 pt 5-8 oz 3-4 oz 2 qt 2 qt 4-8 fl oz 10-14 fl oz 4.5 oz

Do not apply more than 3 sprays of Entrust in any 30-day period. Limit 7.5 oz Entrust per season. See Table 10, pages 46-47 for restrictions on Entrust usage. Apply Intrepid at initiation of egg hatch and 10-18 days later. Isomate-GBM controls only grape berry moth. See comments on mating disruption on page 14. This strategy should be considered only for vineyards at least 2 acres in size.

Other formulations may be available. Do not apply more than 3 sprays of SpinTor in any 30-day period. Limit 23.2 oz SpinTor per season.

7

Grape (continued) Shatter (continued)

Pest/Problem
Grape rootworm

Material

Rose chafer

Japanese beetle

Redbanded leafroller

Leafhoppers including Sharpshooters

Occasional problems from grape rootworm (adult beetles) are also controlled by Sevin, Imidan, Danitol, Baythroid, Renounce, Capture, Brigade, Lannate, or Diazinon applied for berry moth control. This is most likely as a perimeter problem, low in the canopy. Assail 30SG 2.5 oz Danitol 2.4EC 10.7 fl oz Imidan 70WP 1.3-2.1 lb Pyganic 1.4EC 16-64 fl oz Pyganic 5EC 5-18 fl oz Sevin XLR (4 EC) 1-2 qt Other formulations may be available. Surround 95WP 25-50 lb Surround may leave residues on grapes. Same as for rose chafer above, or: Actara 25WDG 1.5-3 oz Avaunt 30WG 5-6 oz Aza-Direct 1-2 pt Belay 2.13SC 2-4 fl oz Brigade 10WP 8-16 oz Brigade 2EC 3.2-6.4 fl oz Brigadier 2EC 5.1-6.4 fl oz Clutch 50WDG 3 oz 10.7-21.3 Danitol 2.4EC fl oz Mustang Max 0.8EC 4 fl oz Neemix 7-16 oz Platinum 2SC 8-17 oz Soil applied for systemic control. Voliam Flexi 40SG 4.5 oz Although adult moths are commonly caught in traps, the larvae of this pest are not common in grapes in the Midwest. Danitol 2.4EC 10.7 fl oz Delegate 25WG 3-5 oz Entrust 80WP 1.25-2.5 oz Imidan 70WP 1.3-2.1 lb Intrepid 2F 4-8 fl oz Intrepid should target small larvae. Sevin XLR (4 EC) 2 qt Other formulations may be available. SpinTor 2SC 4-8 fl oz Surround 95WP 12.5-50 lb Surround may leave residues on grapes at harvest. Tourismo 10-14 fl oz Examining the undersides of grape leaves will indicate if leafhoppers are present. Actara 25WG 1.5-3 oz Admire Pro 7-14 fl oz Soil-applied for systemic control. Agri-Mek 0.15EC 8-16 fl oz Applaud 70DF 9-12 oz Applaud kills nymphs, not adults. Assail 30SG 2.5 oz Baythroid 2E or XL 2.4-3.2 fl oz 2-4 fl oz; Use low rate for foliar applications; use high rate for soil Belay 2.13SC 6-12 fl oz applications. Brigade 2EC 3.2-6.4 fl oz Brigade 10WP (WSB) 8-16 oz Brigadier 2EC 3.8-6.4 fl oz Use low rate for foliar applications; high rate for soil Clutch 50WDG 1-3 oz; 6 oz applications. Danitol 2.4EC 5.3 fl oz Diazinon AG500 (4 EC) 1-2 pt Imidan 70WP 1.3-2.1 lb Lannate SP 8-16 fl oz Lannate LV 1.5-3 pt Leverage 2.7SE 5-8 fl oz
Treatment options continued on next page.

Rate/Acre

Comments

8

Grape (continued) Shatter (continued)

Pest/Problem

Material

Mustang Max 0.8EC Nexter 75WP Portal, Fujimite Provado Solupak 75WP Provado 1.6F Platinum 2SC Pyganic 1.4%EC Pyganic 5%EC Renounce 20WP Scorpion 35SL Sevin XLR (4 EC) Surround 95WP Venom 70SG

Leafhoppers including Sharpshooters (continued)

4 oz 5.2-10.67 oz (1.5-3 bags) 1-2 pt 0.8-1.0 oz 3-4 fl oz 8-17 fl oz 16-64 fl oz 4.5-18 fl oz 2-4 oz 2-5 fl oz; 9-10.5 fl oz 1-2 qt 12.5-50 lb

Rate/Acre

Comments

Soil-applied for systemic control.

1-3 oz; 5-6 oz Voliam Flexi 40SG 4.5 oz This pest is not common in the Midwest. Actara 25WG Admire Pro Applaud 70DF Assail 30SG Baythroid 2E or XL Belay 2.13SC Brigadier 2EC Clutch 50WDG Grape mealybug Imidan 70WP Leverage 2.7SE Movento 2EC Platinum 2SC 1.5-3 oz 7-14 fl oz 9-12 oz 2.5 oz 2.4-3.2 fl oz 6 fl oz; 6-12 fl oz 5.1-6.4 fl oz 2-3 oz; 6 oz 1.3-2.1 lb 5-8 fl oz 6-8 fl oz 8-17 fl oz

Use low rate for foliar applications; use high rate for soil applications. Other formulations may be available. Surround may leave residues on grapes at harvest. Repeat applications might be necessary. Use low rate for foliar applications; use high rate for soil applications.

Soil-applied for systemic control. Crawlers only. Use low rate for foliar applications; use high rate for soil applications. Use low rate for foliar applications; use high rate for soil applications. Crawlers only.

See Movento label regarding postbloom. Soil-applied for systemic control.

Provado Solupak 75WP Portal, Fujimite Provado 1.6F Renounce 20WP Scorpion 35SL Venom 70SG Voliam Flexi 40SG Acramite 50WS Agri-Mek 0.15EC Apollo 1SC Envidor 2SC Kanemite 15SC Kelthane 50WP Nexter 75WP Onager 1EC Portal, Fujimite Zeal 72WP

Mites

0.8-1.0 oz 2 pt 3-4 fl oz 3-4 oz 2-5 fl oz; 9-10.5 fl oz 1-3 oz; 5-6 oz 4.5 oz 0.75-1.0 lb 8-16 fl oz 4-8 fl oz 16-18 fl oz 21-31 fl oz 2.5 lb 4.4-10.67 oz (1-3 bags) 12-24 fl oz 2 pt 2-3 oz

Crawlers only. Use low rate for foliar applications; use high rate for soil applications. Use low rate for foliar applications; use high rate for soil applications. With Agri-Mek, add a nonionic surfactant.

Nexter controls European red mite at 4.4-5.2 oz/A, and twospotted spider mite at 8.8-10.67 oz/A.

9

Grape (continued)

First Cover to Veraison (Berry coloring)

First cover applications should follow shatter by 7-10 days. Thereafter, sprays for disease control should be applied every 10-14 days until veraison. If heavy rainfall occurs, the interval between sprays may need to be shortened. Refer to label for application timing and harvest restrictions. Important Note on Disease Control: After bloom, the threat of Phomopsis infection is greatly reduced. Fruit remain susceptible to black rot, powdery mildew, and downy mildew until about 4-5 weeks after bloom. It is critical to maintain a fungicide program that controls all three of these diseases until about 4-5 weeks after bloom. At 4-5 weeks after bloom, the fruit should be resistant to black rot, powdery mildew, and downy mildew; however, the leaves and rachises (cluster stems) remain susceptible to both powdery and downy mildew for the rest of the season. Therefore fungicide protection against both powdery and downy mildew may be required thoughout the growing season. Pest/Problem Material
Rally 40WSP or Rubigan 1EC or Vintage SC or Procure 50WS or Elite 45DF or Mettle 125 ME or Inspire Super plus Bayleton 50WP or

Rate/Acre
2-6 oz 3-5 oz 4-5 fl oz 5-6 fl oz 4-8 oz 4 oz 3-5 fl oz 16-20 fl oz 4 lb 3-4 lb 2.5 lb 2 lb See comments. 3-4 fl oz 8 fl oz 2.1-2.75 fl oz 6 oz 11-15.4 fl oz 3.2-6.4 oz 1.5-4.0 oz See comments.

Comments

Black rot, Downy mildew, Powdery mildew

Mancozeb 75DF or Captan 50WP or Ridomil Gold MZ or Ridomil Gold Copper or Phosphorous acid or Presidio 4L or Revus 2.08L or Ranman or Forum OR Abound 2.08F or Sovran 50WG or Flint 50WG plus Sulfur or

Mancozeb cannot be applied within 66 days of harvest.

Do not apply Ridomil Gold Copper within 42 days of harvest, or Ridomil Gold MZ within 66 days of harvest. Other restrictions apply. Read the label for more information. See notes on phosphorous acid, page 15. Adding a spreading/penetrating type of adjuvant (such as a nonionic-based surfactant or crop oil concentrate or blend) is recommended.

See notes on Abound, Sovran, Pristine, and Flint, page 16. Flint is not recommended for control of downy mildew.

Use sulfur with caution. See note on page 16.
Treatment options continued on next page.

10

Grape (continued) First Cover to Veraison (continued)

Pest/Problem

Material
JMS Stylet Oil or Quintec 2.08F or Endura 70WG or Potassium salts OR

Rate/Acre
1-2% conc. 3 4 fl oz 4.5 oz See comments. 8-12.5 oz

Comments
Do not use Captan or sulfur within 2 weeks of a stylet oil application, or stylet oil within 2 weeks of a Captan or sulfur application. Mixing Captan or sulfur with oil can result in severe damage to the vine.

See note on potassium salts, page 18. Do not apply Flint or Pristine to Concord or other American type grapes as injury may occur.

Black rot, Downy mildew, Powdery mildew (continued)

Pristine 38WG or

Revus Top or

7 oz

Do not apply Revus Top to Concord grapes. In 2010, severe phytotoxicity (leaf burning) was observed on Concord grapes at several locations. Do not apply Revus Top to other American type grapes (labrusca, labrusca hybrids, and other non-vinifera hybrids) where sensitivity is unknown. Phytotoxicity appears to be worse when Revus Top is tank mixed with foliar fertilizers or adjuvants that increase the rapid uptake of the chemicals by the leaves. Thus far, vinifera grapes and French-American hybrids (Seyval, Vidal, and others) do not appear to be sensitive to Revus Top.

Quadris Top

10-14 fl oz

Fungicide Resistance Alert: See note on page 18 on fungicide resistance development in powdery and downy mildew. Captan 50WP or Ziram 76DF or Phosphorous acid or Presidio 4L or Revus 2.08L or Ranman or Forum plus Sulfur or 3-4 lb 3-4 lb See comments. 3-4 fl oz 8 fl oz 2.1-2.75 fl oz 6 oz See comments. 1-2% 3-4 fl oz 4.5 oz See comments. 8-12.5 oz See note on potassium salts, page 18. Do not apply Flint or Pristine to Concord or other American type grapes as injury may occur. Use sulfur with caution. See note on page 16. Do not use Captan or sulfur within 2 weeks of a stylet oil application, or stylet oil within 2 weeks of a Captan or sulfur application. Mixing Captan or sulfur with oil can result in severe damage to the vine.

See note on phosphorous acid, page 15.

Downy mildew, Powdery mildew

JMS Stylet Oil or Quintec 2.08F or Endura 70WG or Potassium salts OR Pristine 38WG or
Treatment options continued on next page.

11

Grape (continued) First Cover to Veraison (continued)

Pest/Problem

Material
Abound 2.08F or Revus Top or Quadris Top or

Rate/Acre
11-15.4 fl oz 7 oz 10-14 fl oz

Comments
See notes on Abound, Sovran, and Pristine, page 16.

Downy mildew, Powdery mildew (continued)

Fixed copper

See comments.

Fixed copper fungicides provide excellent control of downy mildew, but only moderate to slight control of black rot and powdery mildew. There are many fixed copper fungicides labeled for use on grapes. The use of copper may result in damage to leaves and fruit, especially under cool temperatures and slow drying conditions. Some varieties are more sensitive to copper damage than others. See Table 4. Do not tank mix Rally, Bayleton, or Rubigan with copper fungicides. Read all product labels.

Grape berry moth, Grape rootworm (adults), Leafhoppers, Rose chafer, Japanese beetle, Redbanded leafroller, Grape mealybug, Mites

Same as shatter

Rose chafer infestations usually subside by veraison.

Veraison to Harvest
Pest/Problem
Botrytis bunch rot Powdery mildew, Downy mildew Black rot Grape berry moth, Grape rootworm, Japanese beetle, Leafhopper, Redbanded leafroller, Mites Green June Beetle

Material
Same as bloom Same as first cover to veraison.

Rate/Acre

Comments
See comments under bloom relative to use of Topsin M, Rovral, Vangard, and Elevate on pages 6-7 and comments on Botrytis bunch rot control, page 15. Do not apply sulfur or Captan within 30 days of harvest or fermentation may be affected.

As berries reach full size and sugar content starts to increase, they become resistant to infection by the black rot fungus. Research in New York has demonstrated that berries of most varieties become resistant to black rot infection by 4-5 weeks after bloom. Sprays for black rot should not be needed at this time.

Same as shatter

Continue to monitor for insect and mite pests, and apply insecticide as needed. Refer to product labels for specific insects, rates, and harvest restrictions.

Sevin XLR (4 EC)

2 qt

In southern Midwest, apply in July when first beetles enter the vineyard. Repeat sprays as needed (weekly). Other formulations may be available. Several insecticides listed for Japanese beetle control on page 8 — including Imidan, Danitol, Capture, and Brigade — also provide at least some control of green June beetle.

12

Grape (continued) Veraison to Harvest (continued)

Pest/Problem
Multicolored Asian lady beetle Grape root borer

Material

Belay 2.13SC Clutch 50WG Scorpion 35SL Venom 70SG

Rate/Acre
2-4 fl oz 2-3 oz 2-5 fl oz 1-3 oz

Comments
See special comments on page 13.

See control details, pages 13-14.

RESIDUE REMINDER: Wettable powder formulations may leave visible residues on fruit at harvest.

Post Harvest
Pest/Problem Material Rate/Acre Comments In some years these diseases may cause defoliation well before the onset of cool weather in the fall. Post-harvest early defoliation predisposes the vines to winter injury and reduces productivity for the following season. Thus, it is important to maintain at least some protection against foliar infections by these fungi. Post-harvest rates for fungicides should be the same as pre-harvest rates. Check the label for season limits on quantity of product.

Downy mildew and Powdery mildew

Same as earlier sprays. Check label for specifics.

Special Comments on Grape Schedule
Multicolored Asian Lady Beetle
The multicolored Asian lady beetle (MALB), a late-season vineyard inhabitant, can significantly reduce wine quality. These lady beetles are attracted to ripening grapes as a source of sugars in late summer and fall. They may congregate, often by the hundreds or thousands, in and among grape clusters from August through October.

Although they may cause direct yield loss, they more often reduce wine quality when sufficient numbers become trapped in the harvested grapes and are crushed along with the grapes at the winery. The beetles secrete a defense chemical when stressed, and this chemical causes wine to smell “dirty” (a musty, damp odor), masking the flavors and smells of the grapes. As few as two beetles per lug of grapes can alter wine flavor and bouquet enough to be detected. Excessive numbers of beetles in grape clusters are most common in late-ripening varieties such as Cabernet Franc, Cabernet Sauvignon, Chambourcin, Riesling, Vidal, and Vignoles, but earlier grapes that are prone to cracking can also be infested. Scout vineyards several days before harvest to determine the abundance of multicolored Asian lady beetle. Belay 2.13SC, Clutch 50WG, Venom 70SG, and Scorpion 35S are labeled specifically for control of this insect in grapes. Additional insecticides, including Baythroid, Renounce, and Mustang Max have short preharvest intervals and, although they are not labeled specifically against MALB, they have been effective in trials and vineyard use.

Grape Root Borer

It is generally difficult to evaluate damage from the grape root borer. Injury is most often associated with a slow decline of vineyards, when it can be associated at all. If grape root borer is not a problem, there is no reason to risk destroying the natural control processes (predators, parasites, diseases). A pheromone lure is available that is very effective for attracting grape root borer males. Traps should be set out in early June. If moths are detected, then treatment is advised. If you believe that this insect is affecting your vineyard’s performance, you may wish to begin the following program. Sampling is critical for several reasons: 1. The control program is relatively expensive. 2. Using insecticide can create, as well as solve, problems.

13

Grape (continued)

Immediately After Harvest Sample — 10 vines/acre (but not less than 50 vines). Older vines are more likely to be infested. Examine — A circular site (3 feet in diameter) around the base of each plant, concentrating on the inner 1 foot, looking for shed pupal skins of the grape root borer moth. If pupal skins are found beneath 5% of the vines examined, apply an insecticide next year. 35 Days Before Harvest the Next Season If previous year’s sample indicates a need to spray, apply Lorsban 4E or Lorsban 75WG. The directions on the Lorsban label are to use a rate of 4.5 pints of 4E or 3 pounds of 75 WG per 100 gallons of water. Apply 2 quarts of this diluted spray mix to the soil surface on a 15 square foot area (4.4-foot circle) around the base of each vine. Do not allow the spray to contact fruit or foliage. The pre-harvest restriction is 35 days. Only one applicaton of Lorsban is allowed per year. Do not use for grape root borer control if Lorsban was already used pre-bloom for cutworm control.

Grape Berry Moth-Mating Disruption Strategy

In addition to their use in traps for monitoring insects, pheromones may be used in mating disruption for direct control of certain pests. For grape berry moth, a synthetic version of this insect’s mating pheromone is embedded in plastic tubes that resemble “twist ties.” Where high numbers of these dispensers are used, the atmosphere of a vineyard can contain enough artificial pheromone signals to prevent male moths from finding females and mating with them. If females do not attract a mate, they cannot lay fertile eggs. Mating disruption works best if vineyards are large enough to minimize edge effects and immigration of mated females from adjacent areas; a minimum size for effectiveness is often estimated to be between 2 and 5 acres, but this varies according to a vineyard’s shape and surroundings. Isomate-GBM is the trade name for the plastic dispensers currently available; one distributor of mating disruption products in the Midwest is Great Lakes IPM in Vestaburg, Michigan — (989) 268-5693. See product label for rates and application timing recommendations.

Anthracnose

Anthracnose of grape has not been very common in many regions of the Midwest, but when it does develop it can be very serious and requires special treatment for control. The disease appears to be more common in the warmer, southern regions of the Midwest; however reports of the disease from more northern areas are becoming more common. Where the disease becomes established, fungicides are required to get it under control. Fungicide recommendations for anthracnose control consist of a dormant application of liquid lime sulfur in early spring, followed by applications of foliar fungicides during the growing season. Dormant Application of Liquid Lime Sulfur Liquid lime sulfur is applied at the rate of 10 gallons per acre (this is probably the most important spray for controlling the disease). At this rate, lime sulfur will burn green grape tissue so it should not be applied past bud break. The dormant spray should be made in early spring just as buds swell. This high rate is intended to “burn out” overwintering inoculum on infected canes. In vineyards where the disease has become a problem, this spray has done a good job of getting it under control. Foliar Fungicides Foliar fungicides applied during the growing season will provide additional control. Early season applications are important to keep the disease from getting established on new tissues. As leaves and canes get mature (fully expanded) they become resistant to infection; however, new leaves and succulent cane tips are susceptible throughout the season, and berries remain susceptible until veraison. Although some susceptible tissue will be present later in the growing season, early season control is critical in managing the disease. Very little data exists on the efficacy of foliar fungicides for anthracnose control. Based on fungicide evaluations conducted at Michigan State University by A. Schilder, fungicides such as Mancozeb, Captan, Ziram, Sovran, and Pristine provide moderate to good level of control of anthracnose. At present, mancozeb appears to be a good choice for early season Anthracnose control. In addition to providing some level of anthracnose control, it also provides excellent control of black rot, Phomopsis cane and leaf spot, and downy mildew. It is important to remember that foliar fungicides will probably not provide satisfactory

14

Grape (continued) Veraison to Harvest (continued)

control of anthracnose unless they are used in conjunction with the dormant application of lime sulfur. See Table 1 (Effectiveness of Fungicides for the Control of Grape Diseases) on page 19 for more information on the efficacy of foliar fungicides for anthracnose control.

Grape Bitter Rot

Unlike black rot, which does not infect berries late in the season, bitter rot attacks only mature berries. Both diseases result in black, shriveled (mummified) fruit, and some growers have mistaken bitter rot for black rot. A “rule of thumb” is that if a rot resembling black rot develops on mature berries (8% sugar or above), the cause is probably not black rot. This late season rot is likely to be bitter rot. The new systemic fungicides (Rally, Bayleton, and Rubigan) are not effective against bitter rot (Table 1). If bitter rot is a problem, pre-harvest applications of Captan may be beneficial. Observe all pre-harvest restrictions.

Botrytis Bunch Rot

Use Rovral 50WP at the rate of 1.5-2 lb/A, Vangard 75WG at 10 oz/A, or Elevate 50WG at 1 lb/A (see comments on page 6). Botrytis bunch rot is most commonly a problem on tight-clustered French hybrid and Vitis vinifera cultivars. Proper timing and thorough spray coverage are essential for good control. (See label directions on timing applications.) Direct the spray toward the fruit, and use a minimum of 100 gal/A of water. Include a spreader-sticker with Rovral, especially at the 1.5 lb rate. NOTE: Growers in Europe and Canada have experienced loss of disease control due to the development of fungicide resistance when more than three applications per year of Rovral were made over a period of 3 to 5 years. Vangard and Elevate are also at risk for fungicide resistance development. It is therefore strongly recommended that Rovral, Elevate, and Vangard use be limited to a maximum of three applications per year to reduce the probability of developing strains of Botrytis that are resistant to these materials. In addition, growers should consider alternating applications of Rovral, Elevate, and Vangard during the growing season. NOTE: Removal of leaves around clusters on mid- or low-wire cordon-trained vines before bunch closing has been shown to reduce losses caused by Botrytis.

Downy Mildew — Use of Ridomil Gold MZ and Ridomil Gold Copper

Ridomil is very effective for control of downy mildew on grapes but it has a long preharvest interval. The current labels for Ridomil Gold MZ and Ridomil Gold Copper read as follows. Ridomil Gold MZ: Apply 2.5 lb/A of Ridomil Gold MZ. Make up to four applications beginning before bloom; do not apply within 66 days of harvest. For late season downy mildew control, apply other registered fungicides. NOTE: Other restrictions also apply. Always read the label. Ridomil Gold Copper: Apply 2 lb/A of Ridomil Gold Copper. Make up to four applications beginning before bloom; do not make an application within 42 days of harvest. For late season downy mildew control, apply other registered fungicides. NOTE: Always obtain and read the most current label.

Phosphorous Acid Fungicides (Agri-Fos, Aliette, Legion, Phostrol, ProPhyt, Rampart, Topaz)

Several products containing phosphorous acid (phosphonates, phosphites) are sold as nutritional supplements and “plant conditioners,” but a few products (Agri-Fos, Aliette, Legion, Phostrol, ProPhyt, Rampart, Topaz) are registered for use as fungicides for downy mildew control on grape. These products have provided good to excellent control of downy mildew but do not control other grape diseases. Phosphorous acid has been used successfully for many years in Australia for downy mildew control on grape. Australian experience suggests that these products provide most control on foliage when applied within a few days after the start of an infection period, providing only a few days of additional residual (protective) activity. Experience in New York suggests that spray timing is less critical for control of downy mildew on fruit, perhaps because this highly mobile chemical (which is exempt from residue tolerances) accumulates in these organs. Usage rate recommendations vary among different products. The products mentioned here have a 4-hour re-entry interval and a 0-day preharvest interval. Obtain and read the label of each product prior to use.

15

Grape (continued)

Sulfur

There are many formulations of sulfur labeled for use on grapes. Sulfur is available in dry flowable (DF) and flowable (F) formulations, as well as wettable powders (WP) and dusts (D). The dry flowable and flowable formulations greatly reduce the applicator’s exposure as compared to wettable powders and dusts. Use rates are different for different formulations. See the label for specific use rates. Some grape varieties, such as Concord and other Labrusca (American) types, are extremely sensitive to sulfur. See Table 4. Do not apply when the temperature during or immediately following application will exceed 85°F. Sulfur loses efficacy for powdery mildew control at temperatures below 65˚F.

Abound Flowable (2.08F)

Abound is in the same general class of chemistry as Sovran and Flint (strobilurin) and is registered for control of black rot, downy mildew, powdery mildew, and Phomopsis cane and leaf spot. Abound is excellent for control of black rot and downy mildew, and provides good control of powdery mildew. None of the strobilurins (Abound, Flint, or Sovran) are highly effective for control of Phomopsis cane and leaf spot. Abound is recommended at the rate of 11-15.4 fl oz/A. In university tests, the rate of 11-12 fl oz provided good control of the diseases mentioned above. NOTE: Abound Flowable is very phytotoxic to apples of the variety McIntosh or varieties related to McIntosh. Do not use the same sprayer to apply Abound to grapes that will be used to apply other materials to apples. Do not allow spray to drift from grapes to apples.

Sovran 50WG

Sovran 50WG is in the same general class of chemistry as Abound and Flint (strobilurin). It is registered for control of black rot, powdery mildew, Phomopsis cane and leaf spot, and downy mildew. The Sovran label gives different use rates for control of different diseases. For black rot, Phomopsis cane and leaf spot, and powdery mildew the rate is 3.2-4.8 oz/A; and for downy mildew the rate is 4.0-6.4 oz/A. Sovran is excellent for control of black rot and powdery mildew, but is less effective than Abound for downy mildew control. Under heavy disease pressure, Sovran may not provide adequate control of downy mildew even at the higher rate. Unlike Abound, Sovran is not phytotoxic on certain apple varieties. Sovran has a 14-day PHI. See label for further information and certain use restrictions.

Flint 50WG

Flint 50WG is in the same general class of chemistry as Abound and Sovran. It is registered for control of black rot and powdery mildew, and suppression of downy mildew. Phomopsis cane and leaf spot is not listed on the Flint label. The Flint label provides different use rates for control of different diseases. For powdery mildew the rate is 1.5-2.0 oz/A; for black rot the rate is 2.0 oz/A and for downy mildew the rate is 4.0 oz/A. Flint is excellent for control of black rot and powdery mildew, but is not highly effective against downy mildew, and is not recommended for control of downy mildew. Unlike Abound, Flint is not phytotoxic to certain apple varieties; however, Flint is very phytotoxic to Concord grapes. The label states, “Do not apply Flint to Concord grapes or crop injury may occur.” See label for further information and certain use restrictions.

Pristine 38WDG

Pristine 38WDG contains a combination of two active ingredients (pyraclostrobin, 12.8% and boscalid 25.2%). Pyraclostrobin is in the same general class of chemistry as Abound, Sovran, and Flint (strobilurin). Boscalid is a new class of chemistry with excellent activity against powdery mildew and good activity against Botrytis. With increasing resistance in powdery mildew to the sterol inhibiting fungicides (Rally, Rubigan, Procure, Elite, Mettle, Inspire Super) and the strobilurin fungicides (Abound, Sovran, and Flint), the addition of a new powdery mildew fungicide (boscalid) is timely. Pristine will probably be an important component in our resistance management programs for powdery mildew. Pristine is registered for control of anthracnose, black rot, downy mildew, powdery mildew, and Phomopsis cane and leaf spot, and “suppression only” of Botrytis gray mold. Pristine is registered for use at the rates of 8-12.5 oz/A. A maximum of five applications may be made per season. Pristine has a 14-day preharvest interval. The restricted entry interval (REI) for Pristine is 12 hours for all crop uses except when performing cane tying, cane turning, or cane girdling on grapes. The REI is 5 days for treated grapes when conducting cane tying, cane turning, and cane girdling.The label also states, “Do not use on

16

Grape (continued)

Concord, Worden, Fredonia, or related varieties due to possible foliar injury.” Experience in New York suggests that Corot noir and Noiret may also be sensitive to Pristine.

Adament 50WG

Adament 50WG contains a combination of two active ingredients (tebuconazole 25% and trifloxystrobin 25%). Tebuconazole is the active ingredient in Elite 45DF and trifloxystrobin is the active ingredient in Flint 50WG. Tebuconazole is a sterol inhibiting fungicide and trifloxystrobin is a strobilurin. The combination should be very effective for control of powdery mildew and black rot, but is weak for control of downy mildew. As with Flint, Adament should not be applied to Concord grapes or injury may occur to the vines.

Resistance Management for Strobilurin Fungicides

Do not apply more than two sequential sprays of Abound, Sovran, Flint, or Pristine before alternating with a fungicide that has a different mode of action. For wine and table grapes, do not make more than four applications of a strobilurin fungicide per acre per year. For all other types of grapes, do not make more than three applications of a strobilurin fungicide per acre per year. Always read the label.

Copper Fungicides for Grape Disease Control

When different formulations of copper are dissolved in water, copper ions are released into solution. These copper ions are toxic to fungi and bacteria because of their ability to destroy proteins. However, the use of copper fungicides carries the risk of injuring foliage and fruit of most crops. Factors promoting this injury include: (1) the amount of actual copper applied, and (2) cold, wet weather (slow drying conditions) that apparently increases the availability of copper ions and, thus, increases the risk of plant injury. Because of the potential to injure pants and to accumulate in soil, the use of copper fungicides in conventional production systems has largely been replaced with conventional fungicides that are generally safer to plant tissues and often more effective. Several terms are used when discussing copper as a fungicide. The original material used was copper sulfate (also known as blue vitriol or bluestone). When this material was combined with lime in the French vineyards, the combination became known as Bordeaux mixture. Bordeaux Mixture Bordeaux mixture is a mixture of copper sulfate and hydrated lime in water. It has long residual action and has been used for years to control many diseases, including downy mildew and powdery mildew of grape. It can be made (mixed) on site by combining copper sulfate with spray grade lime. It is also commercially available as a dry wettable powder. Fixed Copper Fungicides Following the discovery and use of Bordeaux mixture, several relatively insoluble copper compounds or fixed coppers were developed. Fixed copper formulations release copper ions more slowly and are generally less injurious to plant tissues (safer to use) than Bordeaux mixture, but their use is still limited because of their potential to injure plants and lack of compatibility with other pesticides. Some of the more common commercial formulations of fixed copper include: Basic copper sulfate: Griffin Basicop, Basic Copper “53,” Micro Flo Cuproxat, Tennessee Brand Tri-Basic Copper Sulfate, Tenn-Cop 5E, and Cuprofix Ultra 40DF. Copper (Cupric) hydroxide: Agtrol Champion WP, Agtrol Champ flowable, Agtrol Champ 2F, Kocide 101, Kocide 3000DF, Kocide 2000D, Microflo BlueShield WP, and Microflo BlueShield DF. There are many other formulations of fixed copper registered for use on grapes. Always read the label for use instructions. Recommendations for Use of Copper Fungicides on Grapes Copper fungicides are highly effective against downy mildew and are moderately effective against powdery mildew. Copper fungicides are weak for controlling black rot, Botrytis bunch rot and Phomopsis cane and leaf spot. The following recommendations are intended to reduce the risk of phytotoxicity when using copper: 1. Do not make a complete seasonlong spray program with any copper fungicide. 2. Use fungicides other than copper whenever possible.

17

Grape (continued)

3. When using copper fungicides, delay their use as late into the growing season as possible. 4. When using copper fungicides, avoid the use of copper sulfate alone. Always use a “fixed” copper formulation. 5. Use the full recommended rate of lime. Never eliminate the use of lime completely, unless the pesticide label indicates that lime should not be used. 6. Remember that cool, wet weather enhances the risk of copper injury. Be especially certain to use adequate lime levels during such periods or switch to other fungicides. 7. Make sure that any material you tank mix with copper is compatible. Many materials are incompatible (cannot be tank-mixed) with copper. 8. Avoid copper and lime sprays on fruit destined for fresh market.

Important Note on Powdery Mildew and Downy Mildew Fungicide Resistance

Powdery Mildew In some locations, the powdery mildew fungus has developed resistance to the sterol-inhibiting fungicides (Rally, Rubigan, Elite, and Procure) and the strobilurin fungicides (Abound, Sovran, and Flint). All of these materials were highly effective for control of powdery mildew when they were first introduced. In the vineyards where these materials have been used for several years, reduced sensitivity or resistance may be present. For this reason, it is recommended that these materials not be used alone when powdery mildew needs to be controlled. In order to provide adequate control of powdery mildew, they should be mixed with sulfur, JMS Stylet Oil, Quintec, Endura, or potassium salts. Pristine is a combination of a strobilurin fungicide plus Endura; therefore it can be used alone. Sulfur is an inexpensive and very effective fungicide for powdery mildew control. On sulfur tolerant varieties, the use of sulfur should be considered. Downy Mildew Strobilurin fungicides are locally systemic, and some have had good to excellent activity against downy mildew. Abound, Sovran, and Pristine have provided excellent activity against downy mildew in the past; however, reports from several areas in Europe and, most recently, from Virginia indicate that the downy mildew fungus has developed resistance, or is at least less sensitive to, these strobilurin fungicides. Growers should consider not using strobilurin fungicides alone for downy mildew control. If these products are used to control other diseases and downy mildew control is also required, tank-mix strobilurins with another fungicide with activity against downy mildew. See Table 1 for alternative fungicides for downy mildew control.

Potassium Salts for Powdery Mildew Control

Several potassium salt materials are currently registered for control of powdery mildew on grape. These include Nutrol (monopotassium phosphate), Kaligreen, and Armicarb 100 (potassium bicarbonate). Several other products may also be available. They provide moderate to good control of powdery mildew when applied to developing powdery mildew colonies. They do not provide protectant activity, and they are not effective against the other grape diseases caused by fungi. See label of each material for usage rates and other recommendations.

18

Grape (continued)

Table 1. Effectiveness of Fungicides for the Control of Grape Diseases
Fungicide
Abound1,2 Adament Bayleton
1

Phomopsis cane and leaf spot
+ 0 0 0 + + 0 0 +++ 0 0 0 ++ + 0 0 0 0 + 0 0 0 0 0 + 0 +

Black rot
+++ + 0 0 +++

Downy mildew
+++ (FRP) + 0 0 0 + 0

Powdery mildew
+++ (FRP) +++ (FRP) 0 0 +++

Botrytis rot
++ + 0 0 ++

Bitter rot
0 ?

Anthracnose
+++ ? ? ?

Captan Elite
1

Elevate Endura

+++

+++

+++

+++ +++ +++ +++ +++ 0 0 +++ +++ +++ 0 0 0 ++ 0 0 0 +

+++ (FRP) +++ ++ 0 0

+++ ++ + 0 0 0 0 0 ++ 0 ? 0 0 ? 0

++ 0 0 ++ + 0 0 0 0 0 0 0 0 ? ? ? 0 0

0

++ ++ ?

Fixed copper and lime Flint
1,2

Ferbam

+++ ?

Forum

+ (FRP) +++ 0 0

+++

+++ (FRP) +++ +++ +++ (FRP) ++ 0 0 0

++

JMS Stylet Oil Mettle Mancozeb

Inspire Super

0 ? ?

?

Potassium salts Presidio

+++

+++ 0 0

++

+++ ++ ? ?

Phosphorous acid Pristine2

+++ +++ (FRP) +++ 0 0 0 +++

Procure1

Quintec Rally1

Quadris Top

+++ (FRP) +++ +++ 0 0

+++

+++ ? ?

0

Revus

Ranman Revus Top

+++ +++ +++ +++ 0 0 0 +++

+++ (FRP)

0

0 0 0 0 ?

0 0 0 ?

++ 0 0 ? ?

0

Rovral Scala

Ridomil Gold Copper
1

Ridomil Gold MZ

+++ ++ + 0

+++ ++ +++ (FRP) +++ (FRP) +++ 0 0 0 0

+ 0 0

Rubigan

++ +++ 0 0 0

+++ +++ ++ 0 0

+

++ + 0 0 0 0

0 ++ +++ 0 ? ? ? ?

Sovran1,2 Sulfur Switch

+ 0

+

++ (FRP) 0 0

Topsin M3 Vangard Vintage Ziram

++ 0 0

+ +++ +++ 0

0 0

0

+++ +++ (FRP) 0 0

++

0 0

+++ 0 0

++

++ 0 0 0

+++ ++

++

++

++

Key to ratings: +++=highly effective; ++=moderately effective; +=slightly effective; 0=not effective; ?=effectiveness unknown or not established; FRP=Fungicide Resistance Possible. See Table 8 for FRAC codes and discussion of fungicide resistance. 1 These fungicides are not recommended for powdery mildew control due to development of fungicide-resistant strains of the powdery mildew fungus. 2 These fungicides are not recommended for downy mildew control due to development of fungicide resistant strains of the downy mildew fungus. 3 Where Topsin M-resistant strains of the powdery mildew and Botrytis fungi have been detected, Topsin M will be ineffective and should not be used. Note: The above ratings are intended to provide readers with an idea of relative effectiveness. They are based on published data and/or field observations from various locations. Ratings could change based on varietal susceptibility and environmental conditions for disease development.

19

Grape (continued)

Table 2. Leaf Wetness Duration-Temperature Combinations Necessary for Grape Foliar Infection by Black Rot
Temperature ºF

Data represent a compilation from several experiments with the cultivars Concord, Catawba, Aurora, and Baco Noir.

50 55 60 65 70 75 80 85 90

Minimum Leaf Wetness Duration for Light Infection (hr)

24 12 9 8 7 7 6 9 12

Table 3. Effectiveness of Pesticides for Control of Grape Insects and Mites
Multicolored Asian lady beetle ++ +++ ++ Grape cane girdler, Grape cane gallmaker Climbing cutworm Grape berry moth Grape phylloxera (foliar) Grape flea beetle Grape root borer ++ Japanese beetle Eight spotted forester Spider mites Leafhoppers Rose chafer Redbanded leafroller Fruit flies +++ +++ +++ -

Insecticides

Admire Altacor Applaud Assail Baythroid (RUP) Belay, Clutch Brigade (RUP) Danitol (RUP) Delegate Diazinon Endosulfan Dibrom

Actara

+++ +++ + ++ +++ +++ ++ -

-

-

-

++ ++ +++ ++ +++ ++ ++ ++ + ++ ++ ++ ++ ++ -

++

-

-

-

-

++ +++ + ++ +++ ++ ++ +++

-

++ ++ ++ ++ +++ -

+++ +++ -

-

+++ +++ ++ -

-

-

++ -

-

++ -

++ ++ -

-

-

-

-

-

Guthion (RUP) Imidan Intrepid Lannate (RUP)

+++ +++ ++ -

-

++ ++ ++ +++

-

-

-

-

-

+++ +++ ++ + +++ ++

+++ -

++ -

++ + -

+++ ++ ++ ++ -

+++ -

Lorsban (RUP EC only)

Movento

Malathion

Mustang Max (RUP)

-

++

++

Table continued on next page.

20

Grape (continued)

Table 3. Effectiveness of Pesticides for Control of Grape Insects and Mites (continued)
Multicolored Asian lady beetle ++ ++ +++
--

Grape cane girdler, Grape cane gallmaker

Climbing cutworm

Grape berry moth

Grape phylloxera (foliar)

Grape flea beetle

Provado Renounce (RUP) Sevin SpinTor, Entrust Venom, Scorpion

+++ ++ ++ +
-

+++ -

+++ ++ +++ ++
+ ++ + -

++ -

++ +++ -

+ +++ +++ +
-

++ ++ -

++ ++ -

+ +++ +++ -

++ ++ +++ +++ + + ++ +++ +++ + +++

+++ -

-

Miticides Acramite Agri-Mek (RUP) Apollo Envidor Kanemite Kelthane Nexter Onager Portal, Fujimite Vendex (RUP) Zeal
-

Key to ratings: +++=highly effective; ++=moderately effective; +=slightly effective; -=ineffective or not sufficient data.

Grape root borer -

Japanese beetle

Eight spotted forester

Spider mites

Leafhoppers

Rose chafer

Redbanded leafroller

Fruit flies

21

Grape (continued)

Table 4. Relative Disease Susceptibility and Chemical Sensitivity among Grape Cultivars.
Susceptible or Sensitive to
Anthracnose Crown gall Phomopsis
Cultivar Aurore Baco Noir Brianna Cabernet Franc Cabernet Sauvignon Canadice Catawba Cayuga White Chambourcin Chancellor Chardonel Chardonnay Concord Corot noir Cynthiana/Norton DeChaunac Delaware Edelweiss Einset Seedless Foch (Marechal Foch) Fredonia Frontenac Frontenac Gris Geneva Red-7 Gewürztraminer Himrod Jupiter LaCrescent LaCrosse Lemberger Leon Millot Marquette Marquis Mars Melody Merlot Moore’s Diamond Muscat Ottonel Niagara Noiret Pinot gris Pinot noir Reliance Riesling St. Croix St. Vincent Seyval Steuben Sunbelt Traminette Valvin Muscat Vanessa Ventura Vidal blanc Vignoles

The relative ratings in this chart apply to an average growing season under conditions usually favorable for disease development. Any given cultivar may be more or less severely affected depending on conditions.

+++ +++ ? +++ +++ +++ +++ + +++ + ++ ++ +++ + + + ++ ? +++ ++ +++ ++ + +++ ++ ++ ++ +++ +++ + +++ + + +++ ++ +++ +++ +++ ++ +++ +++ +++ +++ ? + ++ ++ + + ++ +++ ++ + + ++

++ + + +++ +++ ++ +++ ++ + +++ ++ +++ + +++ ++ ++ +++3 ? ++ +++ + + ++ +++ + +++ +++ ++ +++ ++ + +++ + ++ +++ +++ +++ ++ +++ +++ +++ +++ ++ ++ ++ + ++ ++ + ++ ++ ++ ++ + +

++ ++ ? +++ +++ + ++ + +++ +++ ++ +++ ++ + + ++ ++ ? +++ ++ ++ ++ ++ +++ ++ +++ ++ ++ +++ +++ + + + + +++ +++ +++ ++ ++ +++ +++ ++ +++ ++ + +++ + ++ + ++ ++ ++ +++ +++ ++

+++ ++ + + + ++ + + ++ + ++ +++ + + + + + ? + + ++ ++ ++ +++ + + + +++ + + +++ + + + ++ ++ + + ++ +++ + +++ ++ + +++ + + + + + + + +++ ++ +

+ + ? ? +++ ? +++ ++ + +++ +++ +++ +++ ++ + +++ +++ ? ? +++ + + + ? + + +++ ++ ? + ? +++ + +++ + ? +++ + ? ? ++ ++ +++ + ++ + + +++ + + + + ++ ? +

+++ ++ ? ? +++ ? + + ? + ++ ++ +++ + ? +++ + ? ?

++ +++ ? +++ +++ ++ + ++ ++ +++ ++ +++ + + + ++ + ? + + ? ? + +++ ? ? + ? +++ ? + ? + ? +++ +++ ++ ++ +++ +++ ? +++ ? + ++ + ? ++ + + + ++ ++ ? +

+ + ? ++ ? ++ ++ +++ + ++ + +++ + + + ++ ++ ? ? +++ + + + +++ +++ + + + ? + ? +++ + + ++ ++ ++ + ? ? +++ ? + + + + + + ? ? + +++ +++ ? ++

No No ? No No ? No No Yes Yes No No Yes No Yes Yes No ? ?

++ ? ? ? + ? ++ + ? +++ ? + + ? ? + + ? ? Yes ? ? ? ? + ? ? ? ? ? ? ? ? ? ? ++ ? + ? ? + + + ? ? + ? ? ? ? ? ? ? ? ?

? ? ++ + + + ++ + +++ ++ ++ ++ +++ ++ +++ + +++ ++ + ++ + + + ? + + +++ +++ ++ + +++ + + + ? ? +++ ++ ? ? + + ++ ++ ++ + +++ ++ +++ + + ++ + ? +++

? ? ? + ? ? ? + ? +++ + ? ? ? ? +++ ++

+++

No No No No No No ? ? ? No Yes ? ? ? No No No No No No No No No No ? No No No ? No No ? No No No

Yes

Key to ratings: +=slightly susceptible or sensitive; ++=moderately susceptible or sensitive; +++=highly susceptible or sensitive; No=not sensitive; Yes=sensitive; ?=relative susceptibility or sensitivity not established. 1 Slight to moderate sulfur injury may occur even on tolerant cultivars when temperatures are 85°F or higher during, or immediately following, the application. 2 Copper applied under cool, slow-drying conditions is likely to cause injury. 3 Berries not susceptible. 4 Herbicide sensitivity ratings based on observation and simulated drift studies in Indiana.

+++ + ? +++ ? ? ++ ? + + ? ? ? ? ? ? + ++

22

dicamba4
? ? + +++ ? ? ++ +++ ++ ? +++ +++ ++ +++ +++ ++ ? ? ? +++ ++ +++ + +++ ? ? ++ +++ +++ ? ? + ? + + ? ? ++ +++ ? ? ? ++ ? ? +++ ++ ++ ++ + ? +++ +++ +++ ?

Black rot

Powdery mildew

Copper2

Botrytis

Eutypa

Downy mildew

Sulfur1

2,4-D4

Blueberry

Blueberry Spray Schedule
Dormant
Apply as buds begin to break. Pest/Problem Material Rate/Acre
See comments for rate. 1-2 gal See comments on page 27.

Comments
The lime sulfur label reads: Use 5-6 gal per 100-150 gal of spray per acre. Apply at delayed dormant stage after leaf buds begin to break. Do not use within 14 days of an oil spray or when temperature is above 75˚F as burning of foliage may occur. Ridomil Gold EC has been replaced by Ridomil Gold SL.

Phomopsis cane and twig blight

Lime sulfur solution or

Phytophthora root rot

Sulforix Ridomil Gold SL or Phosphorous acid

Green Tip
Pest/Problem
Stem canker and stem blight

Apply when leaf buds are showing 1/16-1/4 inch green tip. Material Rate/Acre
5 lb 3 lb

Comments
Captan is also available as 80% WDG and Captec 4L. Note: The re-entry interval (REI) for Captan on blueberry is 4 days. For the 80WDG formulation the REI is 3 days. Do not tank mix Captan with Diazinon.

Captan 50WP or Ziram 76DF

Unless diseases (mummy berry, anthracnose, or stem canker) are or have been a problem, an intensive fungicide spray program may not be required. Mummy berry (shoot blight phase) Captan 50WP or Ziram 76DF or Indar 75WSP or Orbit 3.6L 5 lb 3 lb 2 oz 6 fl oz Indar is also available in a flowable (2F) formulation.

Captan provides protective control of stem canker and stem blight, anthracnose, and Phomopsis canker.

Pink Bud Stage and 25% Bloom
Pest/Problem Material
Captan 50WP or 5 lb 3 lb

Apply when flower petals show pink and again at 25% bloom. Rate/Acre

Comments

Mummy berry (blossom infection), Botrytis blight, Stem canker and stem blight, Anthracnose

Ziram 76DF or Indar 75WSP or Orbit 3.6 L or Abound 2.08F or Cabrio 20EG or Pristine 38WG or

Captan provides protective control of stem canker and stem blight, anthracnose, and Phomopsis canker.

2 oz 6 oz 6.2-15.4 fl oz 14 oz 18.5-23 oz 3.5-4.7 lb

Indar is also available in a flowable (2F) formulation.

See note on Abound, Cabrio, and Pristine on page 27.

CaptEvate 68WDG

23

Blueberry (continued) Pink Bud Stage and 25% Bloom (continued)

Pest/Problem
Botrytis blight

Material

Elevate 50WG or CaptEvate 68WDG or Switch 62.5WG

Rate/Acre
1.5 lb 3.5-4.7 lb 11-14 oz

Comments

See note on Switch on page 27.

Full Bloom to Early Petal Fall
Pest/Problem Material
Captan 50WP or Ziram 76DF or Indar 75WSP or Orbit 3.6L or Abound 2.08F or Cabrio 20EG or Pristine 38WG or CaptEvate 68WDG Elevate 50WG or CaptEvate 68WDG or Switch 62.5WG Intrepid 2F Esteem 35WP

Apply when all blossoms are open to when some petals begin to fall.

Rate/Acre
5 lb 3 lb 2 oz 6 oz

Comments
Do not apply Ziram more than 3 weeks after full bloom. Indar is also available in a flowable (2F) formulation.

Mummy berry (blossom infection), Botrytis blight, Stem canker and stem blight, Anthracnose

6.2-15.4 fl oz 14 oz 18.5-23 oz 3.5-4.7 lb 1.5 lb 3.5-4.7 lb 11-14 oz See note on Abound, Cabrio, and Pristine on page 27.

Botrytis blight

Cherry fruitworm

12-16 fl oz 5 oz

See note on Switch on page 27. Cherry fruitworm control by conventional insecticides starts at petal fall, but control by Intrepid must begin earlier. First application is best at 400 degree days (base 50) after biofix (sustained catch of moths in pheromone trap). Second application at 100% petal fall. Apply Esteem when egg laying begins and again at petal fall.

Petal Fall

Apply when petals are falling. Pest/Problem Material

Cherry fruitworm

Control cherry fruitworm at petal fall and 10 days later. Insect pests of blueberry are rare in much of the region; scout before applying insecticides. Unneeded applications of insecticides can create problems where none existed. Asana XL (0.66 EC) 4.8-9.6 fl oz Assail 30SG 4.5-5.3 oz Avaunt 30WG 3.5-6 oz See Table 11 on page 48 for a list of products that Bt (Bacillus contain Bacillus thuringiensis; see individual product thuringiensis) labels for rates and application details. Danitol 2.4EC 10.6-16 oz Delegate 25WG 3-6 oz Diazinon AG600 25.5 fl oz Entrust 80WP 1.25-1.5 oz Limit of 9 oz of Entrust per season. Esteem 35WP 5 oz Guthion 50WP 1-1.5 lb For use in Indiana only. Imidan 70WP 1.3 lb Intrepid 2F 12-16 fl oz Lannate LV 1.5-3 pt Lannate SP 8-16 oz Malathion 8EC 1.5-2.5 pt Malathion 5EC 1.5 pt Sevin XLR (4EC) 1.5-2 qt Other formulations may be available. SpinTor 2SC 4-6 fl oz Target spray to coincide with egg laying.

Rate/Acre

Comments

24

Blueberry

First and Second Cover
Pest/Problem Material

Apply first cover about 7-10 days after petal fall, and second cover about 10 days later. Captan 50WP or Abound 2.08F or Cabrio 20EG or Pristine 38WG or Switch 62.5WG or CaptEvate 68WDG Same as at petal fall for cherry fruitworm. Rate/Acre 5 lb 6.2-15.4 fl oz 14 oz 18.5-23 oz 11-14 oz 3.5-4.7 lb Control cherry fruitworm at petal fall and 10 days later. Control cranberry fruitworm 10 days and 20 days after petal fall. See notes on Abound, Cabrio, and Pristine, and on Switch on page 27. Comments Apply only if anthracnose or canker is a problem.

Anthracnose, Stem canker and stem blight

Cherry fruitworm, Cranberry fruitworm

Plum curculio adults and larvae have not been observed to damage blueberries in the most southern portions of the region. Danitol 2.4EC Guthion 50WP Imidan 70WP Malathion 8EC Malathion 5EC 10.6-16 oz 1-1.5 lb 1.3 lb 1.5-2.5 pt 1.5 pt 12.5-50 lb 1.5-2.5 pt For use in Indiana only.

Plum curculio

Surround 95WP Blueberry tip borer Not a common pest. Malathion 8EC

Surround may leave noticeable residues on berries.

Third and Additional Covers
Pest/Problem Captan 50WP or Abound 2.08F or Cabrio 20EG or Pristine 38WG or Switch 62.5WG Material

Apply about 10 days after previous cover, repeat as needed. Rate/Acre 5 lb 6.2-15.4 fl oz 14 oz 18.5-23 oz 11-14 oz See notes on Abound, Cabrio, and Pristine, and on Switch on page 27. Comments Apply only if these diseases are a problem. Observe harvest restrictions.

Anthracnose, Stem canker and stem blight

25

Blueberry Third and Additional Covers (continued)

Pest/Problem

Material

Rate/Acre

Comments

Blueberry maggot

Japanese beetle

Monitor for first emergence of blueberry maggot flies with traps. Emergence usually begins around July 1 in northern areas. Insecticide applications to protect berries may be needed until harvest. See product labels for preharvest intervals and restrictions. Blueberry maggot is not a common pest in the southern portion of the region. Asana XL (0.66 EC) 9.6 fl oz Assail 30SG 4.5-5.3 oz Danitol 2.4EC 10.67-16 fl oz Diazinon AG600 25.5 fl oz For use in Indiana only. Guthion 50WP 1-1.5 lb Imidan 70WP 1.3 lb Lannate LV 12-24 fl oz Lannate SP 4-8 fl oz Malathion 8EC 1.9-2.5 pt Malathion 95ULV 10 fl oz Provado 1.6F 8 fl oz Rimon 20-30 fl oz Sevin XLR (4 EC) 1.5-2 qt Other formulations may be available. See Table 10 on pages 46-47 for pre-harvest intervals for insecticides listed below. See page 49 for information on this pest. Actara 25WG 4 oz Asana XL (0.66 EC) 4.8-9.6 fl oz Assail 30SG 4.5-5.3 oz Aza-Direct 1-2 pt Aza-Direct acts as a repellent. Danitol 2.4EC 10.67-16 fl oz Imidan is moderately effective and may be used Imidan 70WP 1.3 lb until 3 days before harvest. Malathion 8EC 1.5-2.5 pt Malathion 5EC 1.5 pt Neemix 4.5 7-16 fl oz Neem acts as a repellent. Provado 1.6F 6-8 f. fl oz Pyganic and Neemix provide some short-term Pyganic 1.4%EC 16-64 fl oz control and may be applied until the day of harvest. Pyganic 5%EC 4.5-18 fl oz For control of Japanese beetles on fruit, Sevin is labeled and effective, but may not be used within Sevin XLR (4 EC) 1-2 qt 7 days of harvest. Other formulations may be available. Surround may leave noticeable residues on Surround 95WP 12.5-50 lb berries.

Post Harvest
Stem canker and stem blight Pest/Problem Material Captan 50WP Rate/Acre 5 lb Comments If canker is a problem, apply post-harvest sprays at 4-6 week intervals until leaf drop in the fall.

26

Blueberry (continued) Pre-bloom (continued)

Special Comments on Blueberry Schedule
Phytophthora Root Rot
Ridomil Gold SL is labeled for control of Phytophthora root rot of blueberries. The label reads: “Established plantings: Apply 3.6 pt/A in a 3-foot band over the row before the plants start growth in the spring. One additional application may be made to coincide with periods most favorable for root rot development. New plantings: Apply 3.6 pt/A at the time of planting.” Several phosphorous acid fungicides are registered for control of Phytophthora root rot on blueberry. These materials essentially all have the same active ingredient. Some of these products include Aliette, Agri-Fos, ProPhyt, Phostrol, and Topaz. These materials are applied as foliar sprays. They are highly systemic and move rapidly into leaves and are translocated downward in the plant to the crown and roots. Read labels for additional information on use and restrictions.

Abound, Cabrio, and Pristine

Abound 2.08F, Cabrio 20EG, and Pristine 38WG fungicides are registered for use on blueberry. All of these fungicides belong to the same group of fungicides called strobilurins, and are at risk for fungicide resistance development in pathogenic fungi. No more than four applications of each fungicide may be made per season, and no more than two sequential sprays of each fungicide should be made without switching to a different class of fungicide. Because they are in the same class of chemistry, they cannot be alternated with each other as a fungicide resistance management strategy. These are the materials of choice for control of anthracnose fruit rot on blueberry. Alternating Abound, Cabrio, or Pristine with Captan or Switch may aid in preventing fungicide resistance in the fungus that causes anthracnose.

Switch 62.5WG

Switch is a combination of two active ingredients (cyprodinil and fludioxonil). It is a different class of chemistry than the strobilurin fungicides (Abound, Cabrio, and Pristine). It has excellent activity against Botrytis fruit rot and is registered for control of mummy berry, Alternaria fruit rot, Phomopsis, and anthracnose. Its activity against anthracnose makes it a good material to alternate with a strobilurin fungicide in a resistance management program for anthracnose.

27

Raspberry and Blackberry Spray Schedule
Delayed Dormant
Apply when tips of buds show green. Pest/Problem Material
Anthracnose, Spur blight (reds only), Cane blight Liquid lime-sulfur or Sulforix or

Rate/Acre
6-12 gal 3 gal 4 lb

Comments

This is a critical spray for good disease control. Be sure that all canes are completely covered by the fungicide. This spray may burn the leaves if applied after new shoots are 3/4-inch long.

Copper hydroxide 50WP

Phytophthora root rot

Raspberry crown borer Rednecked cane borer

Altacor 35WG Brigade 2EC Hero 1.24EC

Copper hydroxide is available as Blueshield 50WP or Kocide 50WP. Both products have a 48-hour re-entry interval. Ridomil Gold SL Ridomil Gold EC has been replaced by Ridomil or Gold SL. See comments on page 32 for application Phosphorous acid information. Apply insecticides after egg hatch in late October or early November or wait until late March. Apply as a soil drench directed at the crown of the plants in a minimum of 50 gal water per acre prior to a significant rainfall or irrigation. 3-4.5 oz 6.4 fl oz 10.3 fl oz

See comments on page 32 about pruning to remove last year’s galls.

Pre-bloom

Apply when flowers show white. Pest/Problem Material
Anthracnose, Spur blight (reds only), Cane blight, *Raspberry leaf spot, *Septoria leaf spot Rust diseases (orange rust and late leaf rust), Powdery mildew, *Raspberry leaf spot, *Septoria leaf spot

Pristine 38WG 18.5-23 oz *See note on raspberry leaf spot and Septoria leaf spot on page 34. Rally 40WSP or Cabrio 20EG or Abound 2.08F or Pristine 38WG Delegate 25WG Entrust 80WP Pyganic 1.4%EC Pyganic 5%EC SpinTor 2SC 2.5 oz 14 oz 6.2-15.4 fl oz 18.5-23 oz 3-6 oz 1.25-2 fl oz 16-64 fl oz 4.5 18 fl oz 4-6 fl

NOTE: Unless anthracnose, cane blight, or spur blight have been problems, fungicide applications prior to bloom are probably not required. This is especially true if the delayed-dormant application of lime-sulfur has been made. *See note on raspberry leaf spot and Septoria leaf spot on page 34. Captan 80WDG 2.5 lb See note on Captan on pages 32-33. or Cabrio 20EG 14 oz or See notes on Abound, Cabrio, and Pristine on pages Abound 2.08F 6.2-15.4 fl oz 33-34. or

Rate/Acre

Comments

The name for Nova has been changed to Rally. For late leaf rust and powdery mildew, begin applications when disease first appears and repeat on a 10-14 day schedule. For orange rust, see comments on pages 33. See notes on Abound, Cabrio, and Pristine on pages 33-34.

Raspberry fruitworm

Early fruit is more seriously attacked than later fruit. Check for feeding damage to spring leaves, buds, and early summer fruit.

28

Raspberry & Blackberry (continued) Pre-bloom (continued)

Pest/Problem
Strawberry clipper (bud weevil)

Material

Rate/Acre

Comments

Begin checking for the first clipped buds when buds’ first flowers show white. If clipped buds are found, apply insecticide and repeat spray 10 days later if bud clipping continues. Actara 25WDG Malathion 50WP Sevin XLR Plus Not common pests. Asana XL Aza-Direct Brigade 2EC Bt (Bacillus thuringiensis) 3 oz 4 lb

1-2 qt 4.8-9.6 fl oz 1-2 pt 3.2-6.4 fl oz 8-16 oz See Table 11 for a list of products that contain Bacillus thuringiensis; see individual product labels for rates and application details.

Brigade 10WP (WSB)

Leafrollers

Confirm 2F Danitol 2.4EC Delegate 25WG Entrust 80WP Mustang Max 0.8EC Neemix Pyganic 1.4%EC Pyganic 5%EC Sevin XLR (4 EC) SpinTor 2SC Surround 95WP

16 fl oz 10.7-16 fl oz 3-6 oz 1.25-2 oz 4 oz 0.5-2 gal 16-64 fl oz 4.5-18 fl oz 1-2 qt 4-6 oz

Other formulations may be available.

Not a common pest in most areas. Rose chafer Pyganic 1.4%EC Pyganic 5%EC

12.5-50 lb 16-64 fl oz 1-2 qt

SpinTor should target eggs at hatch or small larvae. Surround may leave noticeable residues on berries.

Sevin XLR (4 EC) Surround 95WP Raspberry sawfly Not a common pest. Delegate 25WG Entrust 80WP Sevin XLR (4 EC)

4.5-18 fl oz 12.5-50 lb 3-6 oz 1.25-2 fl oz 1-2 qt

Other formulations may be available.

Surround may leave noticeable residues on berries.

Other formulations may be available.

First Bloom through Petal Fall
Anthracnose, Botrytis fruit rot, Spur blight (reds only), Cane blight, *Raspberry leaf spot, *Septoria leaf spot

Apply when first flowers open through when petals fall.
*See notes on raspberry leaf spot and Septoria leaf spot on page 34. Make 3 fungicide applications during this period: apply the first as blooms begin to open, not later than 5% bloom; make the second at full bloom; and follow with a third as petals begin to fall. Captan 80WDG or Cabrio 20EG or Abound 2.08F or Pristine 38WG 2.5 lb 14 oz 6.2-15.4 fl oz 18.5-23 oz

29

Raspberry & Blackberry (continued) First Bloom through Petal Fall (continued)

Pest/Problem
Rust diseases (orange rust and late leaf rust), Powdery mildew, *Raspberry leaf spot, *Septoria leaf spot Rosette (double blossom)

Material

Rate/Acre

Comments
The name for Nova has been changed to Rally. For late leaf rust and powdery mildew, begin applications when disease first appears and repeat at 10-14 day schedule. For orange rust, see comments on page 33.

*See notes on raspberry leaf spot and Septoria leaf spot on page 34. Rally 40WSP or Cabrio 20EG or Abound 2.08F or Pristine 38WG 2.5 oz 14 oz 6.2-15.4 fl oz 18.5-23 oz

See comments on page 32. Rovral 50WP or Elevate 50WG or CaptEvate 68WDG or Switch 62.5WG or Pristine 38WG 1-2 lb 1.5 lb 3.5 lb 11-14 oz 18.5-23 oz See note on fungicide resistance management on page 33.

Botrytis fruit rot (only)

Post-bloom through Harvest
Pest/Problem
Anthracnose, Botrytis fruit rot, Spur blight, Cane blight, *Raspberry leaf spot, *Septoria leaf spot

Apply every 14 days after petal fall as needed. Material Rate/Acre Comments
*See note on raspberry leaf spot and Septoria leaf spot on page 34. Captan 80WDG 2.5 lb See comments on Captan on pages 32-33. or CaptEvate 68WDG 3.5 lb CaptEvate has a preharvest interval (PHI) of 3 days. or Cabrio 20EG 14 oz or Abound 2.08F 6.2-15.4 fl oz or Pristine 38WG 18.5-23 oz Rovral 50WP 1-2 lb or CaptEvate 68WDG 3.5 lb Rovral, CaptEvate, Elevate, Switch, and Pristine may or be applied up to and including the day of harvest for Elevate 50WG 1.5 lb Botrytis fruit rot control. or Switch 62.5WG 11-14 oz or Pristine 38WG 18.5-23 oz Rally 40WSP or Cabrio 20EG or Pristine 38WG Admire Pro 2.5 oz 14 oz 18.5-23 oz 10.5-14 fl oz Soil applied for systemic control. Do not apply prebloom, during bloom, or when bees are foraging. See comments on page 32.

Botrytis fruit rot (only)

Rust diseases (orange rust and late leaf rust), Powdery mildew Rednecked cane borer

For late leaf rust and powdery mildew, begin applications when disease first appears and repeat on a 10-14 day schedule. For orange rust, see comments on page 33.

30

Raspberry & Blackberry (continued) Post-bloom through Harvest (continued)

Pest/Problem

Material

Rate/Acre

Comments
Keep berries off the ground and ripe berries picked. Establish bait buckets containing overripe fruit between the berry planting and nearby wooded areas. Empty bait buckets on a daily basis. Few insecticides are registered for sap beetle control, and during picking harvest restrictions practically rule out their use.

Sap beetles

Bait buckets

Assail 30SG

Check preharvest intervals in Table 10 on pages 46-47. Actara 25WB Assail 30SG Aza-Direct Danitol 2.4EC Malathion 8F Neemix 4.5 Pyganic 1.4%EC 3 oz 4.5-5.3 oz 1-2 pt 10.7-16 fl oz 2-4 pt 7-16 fl oz 16-64 fl oz 4.5-18 fl oz 1-2 qt 12.5-50 lb 3 oz 4.5-5.3 oz 16-64 fl oz 4.5-18 fl oz 1.5-2 qt 1.25-1.5 oz 3-6 oz 4-6 fl oz 4-6 oz

4.5-5.3 oz

Japanese beetle and/or Green June beetle

Aza-Direct acts as a repellent. Neem acts as a repellent.

Tarnished plant bug, stink bugs Thrips (including Eastern flower thrips) Mites

Pyganic 5%EC Sevin XLR (4 EC) Surround 95WP Actara 25WB Assail 30SG Pyganic 1.4%EC Pyganic 5%EC Sevin XLR (4 EC) Entrust 80WP Delegate 25WG SpinTor 2SC Savey 50DF

Other formulations may be available. Surround may leave noticeable residues on berries.

Other formulations may be available.

Post Harvest
Pest/Problem
Rust diseases (orange rust and late leaf rust), Powdery mildew, *Raspberry leaf spot, *Septoria leaf spot

Material
Rally 40WSP or

Rate/Acre
2.5 oz

Comments

Altacor 35WG 3-4.5 oz Brigade 2EC 6.4 fl oz Hero 1.24EC 10.3 fl oz Actara also suppresses tarnished plant bug. In exceptionally wet seasons, post-harvest fungicide applications may be required to protect first year canes from anthracnose, spur blight, cane blight, and powdery mildew. A good spray program early in the season should help minimize development of these diseases later in the season.

Raspberry crown borer

Orbit 3.6L 6 fl oz or Cabrio 20EG 14 oz or Abound 2.08F 6.2-15.4 fl oz or Pristine 38WG 18.5-23 oz *Post harvest sprays are probably the most important for control of the leaf spot diseases. When diseases are severe, most defoliation occurs post harvest. Apply insecticides after eggs hatch in late October or early November or wait until March. Apply as a soil drench directed at the crown of plants in a minimum of 50 gal water per acre prior to a significant rainfall or irrigation.

For late leaf rust and powdery mildew, begin applications when disease first appears and repeat on a 10-14 day schedule. For orange rust, see comments on page 33.

31

Raspberry & Blackberry (continued) Post-Bloom through Harvest (continued)

Special Comments on the Raspberry and Blackberry Schedule
Tree Crickets and Periodical Cicadas
See notes on page 49.

Raspberry Cane Maggot Rednecked Cane Borer

The raspberry cane maggot causes wilted tips in May. Cut off wilted tips a few inches below the girdle when first seen. Destroy the removed tips. Scout for galls before or during the delayed dormant period. Prune out galled canes and burn, bury, or otherwise destroy them to kill overwintered larvae. If more than 5 percent of all canes have galls, an insecticide application immediately after bloom may be necessary. Adult emergence begins in May or June. Begin scouting plantings during bloom by looking for adult beetles active during daylight hours. Begin insecticide application(s) after bloom has ended and bees are no longer present. Apply Admire Pro via drip or trickle chemigation or in a soil drench in a minimum of 500 gallons of water per acre. Do not apply pre-bloom or during bloom or when bees are actively foraging.

Phytophthora Root Rot

Ridomil Gold SL is labeled for control of Phytophthora root rot on raspberries. The label reads: Apply 1/4 pt per 1,000 linear feet of row to the soil surface in a 3-foot band over the row. Make one application in the spring and another in the fall after harvest. Ridomil Gold GR (granular) is also labeled on raspberry. Note: Do not apply Ridomil within 45 days before harvest or illegal residues may result. See the label for more detailed information.

Several phosphorous acid products are registered for Phytophthora root rot control on brambles, and all of them have essentially the same active ingredient. They are foliar applications that are highly systemic and move rapidly into the leaves and are translocated downward in the plant to the crown and roots. These fungicides include Agri-Fos, Aliette, ProPhyt, Phostrol, and Topaz. There are several other phosphite fungicides on the market, and new ones continue to be introduced. Recommendations for use vary among products. See labels for use recommendations.

Rosette or Double Blossom

Rosette is caused by the fungus, Cercosporella rubi. It is a serious disease of blackberry in the southern regions of the Midwest (Kentucky and Missouri). At present, Abound is the only fungicide currently labeled for control of this disease on blackberry. It is probable that the other strobilurin fungicides (Cabrio and Pristine) will also provide some level of control. In the past, chemical control of this disease under conditions of heavy pressure has not been highly successful. One possible cultural practice for an infected site is to mow the planting down before flowering to eliminate spore release and infection of emerging primocanes. Though sacrificing one year of production, the practice may provide short-term control. Evidence indicates that only the cultivars Navaho and Arapaho appear to have resistance/tolerance to this fungus. Other cultivars differ in susceptibility, but all will become infected over time. For additional information on Rosette, contact your local Extension office.

Captan Use on Brambles

Federal registration for use of Captan fungicide on caneberries (raspberry and blackberry) was suspended in 1989. In 2003, the Captan 80WDG formulation received federal registration for use on brambles, and the re-entry interval (REI) on the new label was reduced from four days to three days (72 hours). The pre-harvest interval (PHI) for Captan on caneberries is three days. Recently, the registration for several other formulations of Captan (Captan 50W, Captan 80WDG, Captan 4L, and Captec 4L) have also changed. Caneberries have been added to the label and the REI is reduced from four to three days. The PHI on all Captan formulations on caneberries is still three days. Growers need to be aware that some companies have received federal registration for their specific formulations of Captan, while others have not.

32

Raspberry & Blackberry (continued)

The bottom line is that growers who wish to use Captan on caneberries need to read the label of the material they plan to purchase to make sure it is registered on caneberries and has a 3-day REI.

Fungicide Resistance Management

Elevate, Rovral, Switch, and Pristine should not be used alone for seasonlong control of Botrytis fruit rot because of the potential for pathogen strains to develop resistance to each fungicide. The addition (tank mix) of Captan to Elevate, Rovral, Switch, or Pristine should provide a higher level of disease control and aid in preventing fungicide resistance development. Rotating the use of these fungicides in blocks of one or two sprays is a good resistance management strategy.

Cabrio, Pristine, and Rally for Control of Orange Rust

Based on information currently available on the disease cycle of orange rust, there appear to be two main periods during the growing season when fungicides should be effective to control the disease. Growers should review the orange rust section in the Midwest Small Fruit Pest Management Handbook to become familiar with the disease cycle and cultural practices for disease control. The first period is during the spring when aeciospores (bright orange spores) are being produced. Sprays at this time would control “localized” leaf infections and, therefore, teliospores would not be produced later in the growing season. The timing for these sprays would be from just before the aeciospores are released in the spring (generally early to mid-May) until the infected leaves die and dry up, and spores are no longer present (mid-June through mid-July). It is important to note that as temperatures get above 77˚F, aeciospore germination is very slow, and disease development greatly reduced. In short, during the hot days of summer, infections should not be occurring.

The second period is during late summer or fall as temperatures decrease and the threat of “systemic” (teliospore) infections occurs. Even if complete control of early season aeciospore infections is achieved, some teliospores could still be blown into the planting from infected wild hosts. Rally, Abound, Cabrio, or Pristine applied on a 10-14 day schedule during these periods should be beneficial for control. In wet weather the shorter interval should be used. Rally should be alternated with either Cabrio or Pristine in the spray program in order to prevent fungicide resistance development. A good approach would be to alternate them in two-spray blocks. Do not apply more than two sprays without alternating to another class of fungicide. For the most current suggestions for timing fungicide applications for orange rust control, contact Mike Ellis at (330) 263-3849 or [email protected].

Abound 2.08F

Abound 2.08F fungicide is registered for use on all brambles (blackberry and raspberry) for control of Botryosphaeria canker, anthracnose, powdery mildew, raspberry leaf spot, Septoria leaf spot on blackberry, Colletotrichum rot, spur blight, and rosette or double blossom of blackberries. Abound or any other strobilurin fungicide (Cabrio or Pristine) cannot be applied more than three times per season. It cannot be applied in more than two sequential sprays without alternating to another fungicide with a different class of chemistry. It has a 12hour re-entry interval and can be applied on the day of harvest.

Cabrio 20EG

Cabrio 20EG fungicide is registered for use on all brambles (blackberry and raspberry) for control of anthracnose, leaf spot and blotch, powdery mildew, rusts, and spur blight. It is a strobilurin fungicide and has good activity against these diseases. It cannot be applied more than four times per season and cannot be applied in more than two sequential sprays without alternating to another fungicide with a different class of chemistry. It has a 24-hour re-entry interval and a 0-day pre-harvest interval.

33

Raspberry & Blackberry (continued)

Pristine 38WG

Pristine 38WG fungicide is registered for use on all brambles (blackberries and raspberries) for control of anthracnose, Botrytis gray mold, leaf spots, powdery mildew, rust diseases, and spur blight. Pristine is a combination of two active ingredients (pyraclostrobin and boscalid). It cannot be applied more than four times per season and has a 0-day pre-harvest interval. Pyraclostrobin is the same class of chemistry as Cabrio (strobilurin) so Cabrio and Pristine should not be alternated with each other in a resistance management program. For control of rust diseases, Cabrio or Pristine should be alternated with Rally to prevent fungicide resistance development.

Raspberry Leaf Spot and Septoria Leaf Spot of Blackberry and Raspberry

The incidence of raspberry leaf spot and Septoria leaf spot appears to be increasing across the Midwest. If not controlled, they can result in severe defoliation of the plant. The strobilurin fungicides (Abound, Cabrio, Pristine) provide good control of both diseases. Abound is registered for control of raspberry leaf spot and Septoria leaf spot. Some fungicide trials have shown that Captan and Rally also provide some level of control. Post harvest (late season) applications are important for controlling these leaf diseases. Most defoliation resulting from these diseases occurs later in the season (post harvest).

34

Strawberry Spray Schedule
Early Spring (Pre-bloom)
Apply when new leaves are expanding and blossom buds are visible. Pest/Problem Material Rate/Acre Comments
Captan 50WP or Thiram 65WP or Leaf spot, Leaf scorch, Leaf blight, Powdery mildew, Anthracnose Rally 40WSP or Orbit 3.6L or 6 lb 5 lb 2.5-5 oz 4 fl oz 4-8 oz 14 oz 18.5-23 oz 6.2-15.4 fl oz 4-6 fl oz Procure is highly effective for control of powdery mildew only. Cabrio, Pristine, and Abound are registered for control of leaf spot, powdery mildew and anthracnose. Quintec will control powdery mildew only and must be used in a protectant program. See comments on page 41. Watch for clipper when flower buds start coming out of the crown and when temperatures approach 65˚F. Treat if the number of clipped buds per meter of row is 3 or more primary buds or 30 or more secondary or tertiary buds. Infestations begin at field edge so border spray is often sufficient. Strawberry clipper (bud weevil) Actara 25WDG Brigade 10WP (WSB) Danitol 2.4EC Lorsban 4EC Lorsban 75WG Sevin XLR Plus Voliam Flexi Entrust 80WP Eastern flower thrips Radiant 1SC SpinTor 2SC 4 oz 6.4-32 oz 16-21.3 fl oz 2 pt 1.33 lb 5 oz 1.25-1.5 oz 6-10 fl oz 4-6 fl oz 1-2 qt Actara also suppresses tarnished plant bug. The re-entry interval for Captan on strawberry is 24 hours. Always read the label. Captan has good activity against anthracnose and most leaf diseases, but will not control powdery mildew. Captan is also available as 80WDG and Captec 4L. Thiram will not control powdery mildew. The name for Nova has been changed to Rally. Highly effective for control of powdery mildew and leaf blight.

Procure 50WS or

Cabrio 20EG or Pristine 38WG or Abound 2.08F or Quintec 2.08F Red stele

Sample when first blossom buds begin to open. Threshold is 2-10 thrips per blossom. Treat before widespread bloom draws pollinators. Endosulfan, Lorsban, Danitol, and Brigade are not labeled specifically for thrips control in strawberries but have been effective in field use at rates listed for clipper or spittlebug and tarnished plant bug.

If a problem, apply when buds first become visible, and make a second application just before the first bloom opens. Spittlebug, Tarnished plant bug (adults) Assail 30SG Brigade 10WP (WSB) Danitol 2.4EC Endosulfan 3EC Thionex 50WP 1.9-6.9 oz 6.4-32 oz 10.67 fl oz 2.6 pt 1.5-2 qt 2 lb Low rate for spittlebug only.

Sevin XLR (4EC)

Other formulations may be available.

35

Strawberry (continued) Early Spring (Pre-bloom) (continued)

Pest/Problem

Material
Acramite 50WS Agri-mek 0.15EC Danitol 2.4EC Kelthane 50WP Kanemite 15SC Oberon 2SC Portal, Fujimite Savey 50DF Zeal 72WP

Rate/Acre
0.75-1.0 lb 16 fl oz 16-21.3 fl oz 1-2 lb 21-31 fl oz 12-16 fl oz 2 pt 3-6 oz 2-3 oz

Comments

Kelthane use is illegal in Wisconsin.

Spider mites

Savey kills eggs and young nymphs, not adults. Zeal is primarily an ovicide/larvicide and, if needed, should be used early in the season.

Early Bloom through Bloom
Pest/Problem Material

Apply from 5-10% bloom until flowers have finished blooming. Rate/Acre

Comments

NOTE: The most critical period for control of Botrytis fruit rot with fungicides is during bloom. Topsin M 70WSB or Elevate 50WG or Switch 62.5WG or Botrytis blossom blight and fruit rot Scala 5SC plus Captan 50WP or Thiram 65WP OR Captan 50WP or Thiram 65WP or CaptEvate 68WG or Pristine 38WG Rally 40WSP or Orbit 3.6L or Procure 50WS or Abound 2.08F or Cabrio 20EG or 1 lb 1.5 lb 11-14 oz 18 fl oz 4 lb 4 lb 6 lb 5 lb 3.5-5.25 lb 18.5-23 oz 2.5-5 oz 4 fl oz 4-8 oz 6.2-15.4 fl oz 14 oz 18.5-23 oz 4-6 fl oz Procure controls powdery mildew only. Abound is registered for control of powdery mildew and anthracnose. Cabrio is registered for control of leaf spot, powdery mildew, and anthracnose. Quintec will control powdery mildew only and must be used in a protectant program. CaptEvate is a combination of Captan plus Elevate. At the high rate of CaptEvate, the amount of active ingredient of Captan and Elevate are equal to each product used alone. Very effective for control of powdery mildew and Phomopsis leaf blight. Leaf spot is also listed on the label. Not effective for control of Botrytis fruit rot (gray mold). Never use Switch, Elevate, or Topsin M alone for seasonlong control of Botrytis because of the potential for pathogen strains to develop resistance. Switch provides excellent control of Botrytis fruit rot (gray mold) and has been reported to have good activity against anthracnose fruit rot.

Powdery mildew, Leaf spot, Leaf blight, Leaf scorch

Pristine 38WG or Quintec 2.08F

36

Strawberry (continued) Early Bloom through Bloom (continued)

Pest/Problem

Material
Abound 2.08F or Cabrio 20EG or

Rate/Acre
6.2-15.4 fl oz 14 oz 18.5-23 oz 11-14 oz 6 lb 6.2-15.4 fl oz 14 oz 18.5-23 oz 11-14 oz

Comments

Pristine 38WG or

Switch 62.5WG or Captan 50WP Anthracnose Abound 2.08F or OR

Cabrio 20EG or Pristine 38WG or plus Captan 50WP Insects

Switch 62.5WG

6 lb

Under heavy disease pressure for anthracnose all fungicides should be combined with Captan. The use of Captan close to harvest may result in visible fungicide residues on the fruit and should be avoided.

Save the bees! Do not apply insecticides during bloom.

Post-bloom to Harvest
Pest/Problem Material

Apply every 7-10 days as needed. Rate/Acre Comments
A good layer of straw mulch will reduce berry contact with soil and lessen fruit rot problems, especially leather rot. The wetter the season, the more necessary it is to maintain a thorough spray program. The use of Captan, Thiram or CaptEvate close to harvest may result in visible fungicide residues on the fruit. Close to, or during, harvest when visible residues are a concern, use Topsin M, Elevate, Switch, or Pristine alone. This should result in little or no visible residues. 6.2-15.4 fl oz 14 oz 18.5-23 oz 11-14 oz 6 lb

Botrytis fruit rot

Same as early bloom through bloom. See note on visible fungicide residue on fruit.

Abound 2.08F or Cabrio 20EG or Anthracnose Pristine 38WG or Switch 62.5WG or Captan 50WP OR
Treatment options continued on next page.

37

Strawberry (continued) Post-Bloom to Harvest (continued)

Pest/Problem

Material

Anthracnose (continued)

Abound 2.08F or Cabrio 20EG or Pristine 38WG or Switch 62.5WG plus Captan 50WP Ridomil Gold SL or Phosphorous acid or Abound 2.08F or Cabrio 20EG or Pristine 38WG Rally 40WSP or

Rate/Acre
6.2-15.4 fl oz 14 oz 18.5-23 oz 11-14 oz 6 lb

Comments

Under heavy disease pressure for anthracnose all fungicides should be combined with Captan. See comments on page 41 for rates and timing.

Leather rot

6.2-15.4 fl oz 14 oz 18.5-23 oz 2.5-5 oz 4 fl oz 6.2-15.4 fl oz 14 oz 18.5-23 oz 4-6 fl oz Quintec will control powdery mildew only and must be used in a protectant program.

Leaf spot, Leaf blight, Leaf scorch, Powdery mildew

Orbit 3.6L or Abound 2.08F or Cabrio 20EG or Pristine 38WG or Quintec 2.08F

Very effective for control of powdery mildew and Phomopsis leaf blight. Leaf spot is also listed on the label. Not effective for control of Botrytis fruit rot (gray mold).

Anthracnose fruit rot

Spittlebug, Tarnished plant bug (nymphs)

Leafrollers and other caterpillars

See comments on page 41. Make every effort to protect bees by spraying when bees are not active. Follow all harvest restrictions. Assail 30SG 1.9-6.9 oz Low rate for spittlebug only. Brigade 10WP (WSB) 6.4-32 oz Danitol 2.4EC 10.67 fl oz Endosulfan 3EC 2.6 pt Provado 1.6F 3.75 fl oz Provado is for spittlebug control only. Rimon 0.83EC 9-12 fl oz Sevin XLR (4EC) 1.5-2 qt Other formulations may be available. Thionex 50WP 2 lb Brigade 10WP (WSB) 6.4-32 oz See Table 11 on page 48 for a list of products that Bt (Bacillus contain Bacillus thuringiensis; see individual product thuriingiensis) labels for rates and application details. Coragen 1.67SC 3.5-5 fl oz Entrust 80WP 1.25-1.5 oz Radiant 1SC 6-10 oz Rimon 0.83EC 9-12 fl oz SpinTor 2SC 4-6 fl oz

Strawberry sap beetle

As an alternative to insecticides, to control sap beetle during harvest, use bait buckets containing overripe fruit placed in field between berry patch and wooded area. Assail 30SG 4-6.9 oz Brigade 10WP (WSB) 6.4-32 oz Brigade has a 0-day pre-harvest interval. Danitol 2.4EC 16-21.3 fl oz Danitol has a 2-day pre-harvest interval. Rimon 0.83EC 12 fl oz Apply when adults appear and prior to egg hatch.

38

Strawberry (continued) Post-bloom to Harvest (continued)

Pest/Problem
Slugs Crickets Strawberry rootworm (adult beetles)

Material

Broadcast baits before berries form, or apply to soil surface in band between rows after berries form. Best if applied in the evening after rain or irrigation. Deadline MP’s (4% bait) Sluggo Sevin 5 Bait 10-40 lb 24-44 lb 40 lb

Rate/Acre

Comments

Bait has a 7-day PHI.

Insecticides used for control of other strawberry pests are likely to control this pest as well. This pest builds up in perennially grown strawberries, not those replanted yearly and grown on plastic mulch.

Harvest

Apply during fruit harvest season. Pest/Problem Material Rate/Acre Comments
If wet weather persists and fungicide is required for control of Botrytis fruit rot, these fungicides should be effective. NOTE: If Botrytis is controlled effectively during bloom, the need for additional fungicide applications during harvest is greatly reduced or eliminated. Due to the relatively high application rates, the use of Captan and Thiram immediately prior to or during harvest may result in unsightly residues on fruit. Thus, their use at this time is discouraged. In addition, other use restrictions apply. Always read the label.

Botrytis fruit rot

Botrytis fruit rot (continued)

Elevate 50WG or Switch 62.5WG or Pristine 38WG or Scala 5SC OR Topsin M 70WSB or Elevate 50WG or Switch 62.5WG or Pristine 38WG or Scala 5SC plus Captan 50WP Abound 2.08F or Cabrio 20EG or Pristine 38WG or Switch 62.5WG or Captan 50WP OR

Topsin M 70WSB or

0.75-1 lb

Topsin M has a 1-day PHI.

1.5 lb 11-14 oz 18.5-23 oz 18 fl oz 0.75-1 lb 1.5 lb 11-14 oz 18.5-23 oz 18 fl oz 2-4 lb 6.2-15.4 fl oz 14 oz 18.5-23 oz 11-14 oz 6 lb

Elevate has a 0-day PHI. Switch has a 0-day PHI.

Topsin M, Elevate, or Switch should not be used alone in repeated sprays due to the potential for fungicide resistance development.

The addition of Captan should result in a higher level of disease control; however, Captan used at higher rates and closer to harvest may leave visible residues on fruit.

Anthracnose

Treatment options continued on next page.

39

Strawberry (continued) Harvest (continued)

Pest/Problem

Anthracnose (continued)

Material Abound 2.08F or Cabrio 20EG or Pristine 38WG or Switch 62.5WG plus
Captan 50WP

Rate/Acre
6.2-15.4 fl oz 14 oz 18.5-23 oz 11-14 oz

Comments

6 lb

Leather rot

The addition of Captan should result in a higher level of disease control; however, Captan used at higher rates and closer to harvest may leave visible residues on fruit. See comments on page 41.

Post Harvest and New Plantings
Apply every 10-14 days as needed. Pest/Problem Material Rate/Acre Comments
It is important to maintain good functional foliage on the plants until late fall. Especially during wet seasons, leaf diseases can increase, resulting in weak plants and increased primary inoculum for the next season. Extra fungicide sprays after harvest may be required. Captan 50WP or Thiram 65WP or
Rally 40WSP or

Leaf spot, Leaf scorch, Leaf blight

6 lb 5 lb 0.75-1 lb

Topsin M 70WSB

2.5-5 oz
4 fl oz

Leaf blight, Leaf spot, Leaf scorch, Powdery mildew

Orbit 3.6L or Pristine 38WG or Abound 2.08F or Cabrio 20EG or

Very effective for control of powdery mildew and Phomopsis leaf blight. Leaf spot is also listed on the label.

18.5-23 oz 6.2-15.4 fl oz 14 oz 10-14 fl oz 7-10.5 fl oz 5-12 oz 16-24 fl oz Quintec will control powdery mildew only and must be used in a protectant program. Admire and Platinum are for post harvest soil application on perennial strawberries during renovation. See comments on page 41. See comments on page 41.

Quintec 2.08F White grubs Insects in new plantings, including strawberry root weevils Leather rot, Red stele Admire Pro Admire 2F

Platinum 2SC

40

Strawberry (continued)

Special Comments on the Strawberry Schedule
Ridomil is labeled for control of red stele (caused by Phytophthora fragariae) and leather rot (caused by Phytophthora cactorum). The label for perennial strawberries reads: Established Plantings: Apply Ridomil Gold SL at 1 pt per treated acre. Make the first application in the spring after the ground thaws and before first bloom. Make a second application after harvest in the fall. For supplemental control of leather rot, an application may be made during the growing season at fruit set.” Phosphorous acid fungicides: Several phosphorous acid fungicides are labeled for control of red stele and leather rot on strawberries. They all have essentially the same active ingredient. These products include Agri-Fos, Aliette, Legion, ProPhyt, Phostrol, Rampart, and Topaz. There are several other phosphite fungicides on the market and new ones continue to be introduced. These materials are highly systemic and are applied as foliar sprays for leather rot control. Research at Ohio State University has shown that phosphorous acid materials are highly effective for control of leather rot when applied in a protectant program on a 7-day interval. In addition, Agri-Fos provided up to 36 hours of curative activity against leather rot in laboratory and field trials. Recommendations for use and prices vary among products. Compare prices and read the product labels for rates and use recommendations. Abound, Cabrio, and Pristine are all effective for control of leather rot when applied in a protectant program.

Leather Rot and Red Stele Control

Anthracnose Fruit Rot Control

Anthracnose can be a severe disease attacking both green and ripe (red) strawberry fruit. The disease is favored by high temperatures accompanied by rainfall prior to and during harvest. If anthracnose was a problem in the planting during the previous growing season or is detected in the planting during the current growing season, growers may want to consider an intensified fungicide spray program. Abound 2.08F, Cabrio 20EG, and Pristine 38WG fungicides are registered for control of anthracnose and powdery mildew. All of these fungicides are reported to have good to excellent activity against anthracnose and are the fungicides of choice for anthracnose control. All fungicides are at risk for fungicide resistance development in the fungi that cause powdery mildew and anthracnose. In order to prevent or delay the development of fungicide resistance, none of these fungicides should be applied more than four times per season or in more than two sequential sprays without alternating to a fungicide in a different class of chemistry. Abound, Cabrio, and Pristine are all in the same class of chemistry (strobilurins) and cannot be alternated with each other as a fungicide resistance management strategy. Captan is the old standard material for anthracnose control, but is not as effective as Abound, Cabrio, or Pristine. Switch fungicide is also reported to have some activity against anthracnose. Therefore, Captan or Switch should be alternated with Abound, Cabrio, or Pristine. Under heavy disease pressure, growers should consider using a combination (tank mix) of Abound, Cabrio, or Pristine plus Captan for control of anthracnose fruit rot. These materials must be used in a protectant program. Once the disease is present in the field it is difficult to control with fungicides.

Strawberry Root Weevil or Black Vine Weevil

The larval stage of these pests damages strawberry roots. Because of the weevils’ lack of mobility, infestations do not spread rapidly. Be sure that nursery stock is not infested before planting. Plow under old plantings soon after harvest, and locate new plantings 300 feet away. Adult weevils can be killed by one or more foliar sprays of Brigade 10WP. Platinum 2SC is labeled for soil application to control root weevil larvae.

Potato Leafhopper

Strawberry foliage can be damaged by adult potato leafhoppers that feed in the crop for a short time, then leave. Damaged leaves become crinkled and turn yellow to brown at the margins. Damage is often detected after leafhoppers have left the field. If infestations are detected, carbaryl (Sevin) is labeled for control of this pest. Courier can be used for leafhopper control but affects only immatures, not adult leafhoppers. Brigade, Danitol, Diazinon, and Endosulfan do not list leafhoppers on their labels but should also provide control.

Eastern Flower Thrips

Feeding by eastern flower thrips on blossoms and small berries results in small, seedy fruit that has a rubbery texture and poor color. Inspect the early blossoms on early varieties for the presence of thrips. Although an exact threshold is not known, control is warranted if counts exceed 2 to 10 thrips per blossom. Entrust, SpinTor, and Radiant are labeled specifically for thrips control on strawberries. Endosulfan, Lorsban, Brigade, and Danitol also are likely to work well.

41

Strawberry (continued)

Cyclamen Mites

Use Portal (or Fujimite) at 2 pt per acre, 1-day pre-harvest interval, or use Endosulfan (Thionex) one to two days before bloom and again 10 to14 days later. Apply 4 lb of Thionex 50W or 2.7 qts of Endosulfan 3EC or Thionex 3EC in the first application and 2 lb of 50W or 1.3 qts. 3EC in the second. It is not effective if delayed until midsummer. Use of endosulfan on strawberries will be cancelled in 2012 for annual crops and in 2016 for biennial and perennial crops. Another option is Kelthane 50WP (dicofol) used at 3-4 lb/A. Kelthane use is illegal in Wisconsin.

Table 5. Disease Resistance of Strawberry Cultivars Commonly Grown in the Midwest
Cultivar

Rating: I=intermediate; PR=partially resistant; R=resistant; S=susceptible; T=tolerant; U=unknown. 1 Includes leaf spot and leaf scorch. 2 Cultivar sensitivity to Sinbar herbicide. Rating: VS=very sensitive, S=sensitive, MS=moderately sensitive, SS=slightly sensitive, NS=not very sensitive, U=Unknown. 3 Resistant characteristics of the cultivar usually preclude the need for other controls. 4 Del Marvel and Sweet Charlie have been reported to have good field resistance to anthracnose fruit rot. 5 Resistant to several races of the red stele fungus. 6 Plasticulture production is primarily for southern areas of the Midwest. Ratings according to the Penn State Commercial Berry Production and Pest Management Guide, 2002-2004. See expanded table in the Midwest Small Fruit Pest Management Handbook.

Junebearing Allstar Annapolis Brunswick Cabot Cavendish DarSelect DelMarvel4 Earliglow Eros Evangeline Glooscap Guardian Honeoye Jewel Kent Latestar Lester Mesabi Mira Noreaster Ovation Primetime Redchief Sable Seneca Surecrop Wendy Winona Day Neutral Albion Tribute Tristar Seascape Plasticulture System6 Camarosa Chandler Sweet Charlie4

Verticillium wilt

Red stele

Leaf disease1

Powdery mildew

Sinbar sensitivity2

R-T3 I U U I U R R S U S R S S S R S R U R U R PR U S R U T U PR R U U U U

R R R R R U R R5 R S VS R5 S S S R R R R R R R R5 R S R5 U R U R R U U S U

T S U T PR T R R VS U T R PR PR S R R R S I R R R T U R U R U T T U S S U

T S U U S VS U PR S R T S T R T U T R R S VS U R S U U U U U R R U S S U

NS VS U U S U U NS U U U VS MS U VS U U U U U U U U U U U U U U VS VS U NS NS U

42

Table 6. Fungicide Effectiveness for Strawberry Disease Control
Abound Aliette Cabrio Captan CaptEvate Elevate Orbit Phosphorous acid Pristine Procure Quintec Rally Ridomil Scala Switch Topsin M1 Thiram
Fungicide Phomopsis leaf blight

Strawberry (continued)

? 0 ? ++ ++ 0 ? 0 ? ? 0 +++ 0 0 0 ++ ++

Leaf spot

? 0 ++ ++ ++ 0 ++ 0 ++ ? 0 ++ 0 0 0 ++ ++

Powdery mildew

+++ 0 +++ 0 0 0 +++ 0 +++ +++ +++ +++ 0 0 0 +++ 0

Gray mold ++ 0 ++ ++ +++ +++ 0 0 ++ 0 0 0 0 +++ +++ +++ ++

Leather rot

+++ +++ +++ + + 0 0 +++ +++ 0 0 0 +++ 0 0 0 +

Anthracnose fruit rot

+++ 0 +++ ++ ++ 0 0 0 +++ 0 0 0 0 0 ++ 0 +

Efficacy rating system: +++=highly effective; ++=moderately effective; +=slightly effective; 0=not effective; ?=activity unknown. 1 Never apply Topsin M alone. Always apply in combination with an unrelated fungicide such as Captan or Thiram.

Table 7. Effectiveness of Pesticides for Control of Strawberry Insects and Mites
Root weevils Eastern flower thrips Leafhoppers Spider mites Slugs

CHEMICAL

Efficacy rating system: +++=Highly effective; ++=moderately effective; +=slightly effective; -= ineffective or not sufficient data.

Acramite Admire Agri-mek Assail Brigade +++ Coragen Courier Danitol Diazinon Dibrom Endosulfan (Thionex) - +++ Intrepid Kanemite Kelthane ++ Lorsban +++ Malathion Metaldehyde Oberon Portal, Fujimite - +++ Provado Radiant Rimon Savey Sevin Sluggo SpinTor Vendex Zeal

+++ +++ ++ +++ ++ ++ -

++ ++ + ++ + + + ++ ++ -

+++ ++ ++ +++ +++ + ++ -

+ -

+ -

++ +++ ++ ++ ++ + + ++ + +++ -

+++ +++ + + ++ + ++ +++ +++ + +++

+++ +++ ++ +++ ++ -

++ +++ +++ + +++ ++ -

+++ ++ -

White grubs

Rootworms

Sap beetles

Leafrollers

Spittlebug

Cyclamen mite

Tarnished plant bug

Clipper

43

Table 8. Fungicide Harvest Restrictions and Restricted-Entry Intervals (REI)
Trade Name
Abound Adament Aliette Basic copper sulfate Bayleton Cabrio CaptEvate Dithane M-45, others Elevate Elite Endura Ferbam Flint Forum Indar

Common Name
azoxystrobin tebuconazole plus trifloxystrobin fosetyl-AL

Harvest Restrictions

Days before harvest and limitations (Maximum amount/ acre/season)a Grape Blueberry Brambles Strawberry
14* 0 0* 0 (56 oz) 0 (70 lb) 0 (21 lb) 0 30 30 0 60 0 (56 oz) 3d 0 (21 lb) 0 30 0 0 0 (30 lb) 0 (56 oz) 0 (48 lb) 0 (21 lb) 0* 0 0 0 14* 15* 14 (18 oz) 0 (24 lb) 0* 14 14* 7 14* 28* 0 14 21 66* 0

REIb
12 hr 24hr 24 hr 12 hr

FRACc Code
11 11 3 33 3 11 M

Captan

captan captan plus fenhexamid mancozeb

triadimefon pyraclostrobin

copper sulfate

See notee 24/72 hr 12 hr 12 hr 12 hr 24 hr 12 hr 12 hr 12 hr 12 hr 24 hr
e

12 hr 24 hr

Pristine

JMS Stylet Oil Mettle Orbit Presidio Procure ProPhyt, Phostrol, Agri-Fos, Topaz, Legion, Rampart

Inspire Super

fenhexamid tebuconazole boscalid carbamate trifloxystrobin dimethomorph fenbuconazole difenoconazole plus cyprodinil oil tetraconazole propiconazale fluopicolide pyraclostrobin plus boscalid triflumizole phosphorous acid difenoconazole plus azoxystrobin quinoxyfen myclobutanil cyazofamid mandipropamid difenoconazole plus mandipropamid

14*

7 (32 oz) 0 14* 14* 14 (1.5 lb) 30* 14 14* 66 42 7* 21 (19 oz) 7 14* 0 7

14*

0*

0*

0*

12 hr i 24 hr 4 hr 12 hr 12 hr 24 hr 12 hr 12 hr 12 hr 48 hr 48 hr 48 hr 24 hrf 12 hr see noteg 12 hr 24 hr 12 hr

12 hr 12 hr 12 hr 12 hr

17 3 7 M 11 40 3 3 9 3 3 43 11 7 3 33 3 11 13 3 21 40 3 40 4 M 4 M 2 3 9 11 M 9 12 4

M M 17 M

0 0 0* 0 0 (56 oz)

0* 1 (10 oz) 45 0* 0 0 (56 oz)

0 1* 1 (10 oz) 0 1 0 0 (56 oz)

Quadris Top Quintec Rally Ranman Revus Revus Top Ridomil Gold SL Ridomil Gold MZ Ridomil Gold Copper Rovral Rubigan Scala Sovran Sulfur Switch

mefenoxam plus mancozeb mefenoxam plus copper iprodione fenarimol pyrimethanil kresoxim-methyl sulfur cyprodinil plus fludioxonil

mefenoxam

Table continued on next page.

44

(Table 8 continued)
Trade Name
Topsin M

Common Name
thiophanate

Harvest Restrictions

Days before harvest and limitations (Maximum amount/ acre/season)a Grape Blueberry Brambles Strawberry
14 (4 lb) 3 1

REIb
see noteh

FRACc Code
M 1

Thiram
*

Vangard

thiram

cyprodinil

7*

-

-

-

12 hr

24 hr

9

Limited number of applications allowed, or other restrictions apply. REFER TO LABEL DIRECTIONS. - Not registered or recommended for the crop listed. a Amounts shown in parenthesis are the maximum amounts of the fungicide permitted per season. b All fungicides have a Restricted-Entry Interval (REI). The restricted-entry interval is the time immediately after a pesticide application when entry into the treated area is limited. Check labels for REI. Restrictions in REI may prohibit the use of certain pesticides during harvest. c FRAC code represents the mode of action of the fungicide. d See comments on captan formulations and registrations on pages 32-33. e Captan 80WDG has a 3-day REI on grapes, raspberries, blackberries and blueberries. All captan formulations have a 24-hour REI on strawberries. CaptEvate has a 72-hour REI on blueberries and raspberries, and a 24-hour REI on strawberries. f REI for Rovral is 48 hours on grapes. g REI for Scala is 24 hours on grapes, 12 hours on strawberries. h REI for Topsin M is 7 days on grapes. i REI for Pristine is 5 days when conducting cane tying, cane turning, or cane girdling.

Note on Fungicide Resistance Management

Plant pathogenic fungi have been known to develop resistance to fungicides after repeated exposure. For fungicide resistance management, avoid successive applications of fungicides within the same group or type of chemistry. The Fungicide Resistance Action Committee codes (FRAC codes) listed in Table 8 identify the various fungicide mode of action groups. Rotating to fungicides with a different FRAC code should help avoid development of fungicide resistance in pathogenic fungi. Strobilurin Fungicides include: azoxystrobin (Abound); pyraclostrobin (Cabrio, Pristine); trifloxystrobin (Flint); and kresoxim-methyl (Sovran). Benzimidazole Fungicides include: thiophanate-methyl (Topsin M, T methyl). Sterol Inhibiting Fungicides include: triadimefon (Bayleton); tebuconazole (Elite); myclobutanil (Rally); triflumizole (Procure); fenarimol (Vintage); tetraconazole (Mettle); and difenoconazole (Inspire Super). The following fungicides are also at risk for resistance development: fenhexamide (Elevate); boscalid (Endura); metalaxyl (Ridomil); iprodione (Rovral); cyprodinil (Vangard, Switch); and pyrimethanil (Scala). The following materials are broad spectrum protectant fungicides and are not considered to be at risk for resistance development: captan (Captan); mancozeb (Dithane, Manzate, Penncozeb); carbamate (Ferbam); thiram (Thiram); ziram (Ziram); fixed copper (several trade names); and sulfur.

Table 9. Generic Fungicides
Common Name
propiconazole chlorothalonil thiophanate methyl iprodione metalaxyl myclobutanil

Original Trade Name (Manufacturer)
Orbit 41.8L (Syngenta) Bravo Weather Stick (Zeneca) Topsin-M 70WDG (United Phosphorous Inc.) Rovral 4F (Bayer) Ridomil 2E (Syngenta) Rally 40WSP (Dow AgriSciences)

Propimax 41.8L (Dow AgriSciences) Bumper 41.8L (Makhteshim)

Other Trade Names (Manufacturer)

Equus DF (Makhteshim) Chlorothalonil 720 (Arysta Life Science)

Thiophanate Methyl 85WSB (Makhteshim) T-Methyl EAG 70WSB (Nufarm) T-Methyl 70W WSB (Arysta Life Science) Iprodione 4L AG (Arysta Life Science) Nevado 4F (Makhteshim) Metastar 2E (Arysta Life Science) Sonoma 40WSP (Albaugh) Orius 3.6F (Makhteshim) Orius 45DF (Makhteshim) Tebuzol 45DF (United Phosphorous Inc.) TebuStar 3.6 L (Albaugh) TebuStar 45WSP (Albaugh) Legion 80WDG (Makhteshim)

tebaconazole

Elite 45DF (Bayer)

fosetyl-Al

Aliette 80WDG (Bayer)

45

Table 10. Insecticide and Miticide Harvest Restrictions and Restricted-Entry Intervals
Consult product label for complete restrictions and limitations. Trade Name
Acramite Actara Admire Agri-mek (RUP) Altacor Apollo Applaud Asana (RUP) Assail Avaunt Baythroid (RUP) Belay, Clutch Belt Brigade (RUP) Brigadier (RUP) Capture (RUP) Confirm Coragen Courier Danitol (RUP) Deadline Diazinon (RUP) Dibrom Dicofol, Kelthane DiPelc (OMRI) Endosulfan Entrust (OMRI) Envidor Esteem Evergreen Guthion (RUP) Hero (RUP) Imidan Intrepid Kanemite Lannate* (RUP) Leverage (RUP) Lorsban (some RUP) Malathion Movento Delegate


REIa IRACb Code
25 4A 4A 6 28 10A 16 3 4A 22 3 4A 28 3 3 4A 3 18A 28 16 3 1B 1B UN 11 2A 5 23 7C 3 1B 3 3 1B 18A 20B 1A 3 4A 1B 1B 23 5

Common Name
bifenazate thiamethoxam imidacloprid abamectin chlorantraniliprole clofentezine buprofezin esfenvalerate acetamiprid indoxacarb cyfluthrin clothianidin flubendiamide bifenthrin bifenthrin + imidacloprid bifenthrin tebufenozide chlorantraniliprole buprofezin fenpropathrin metaldehyde spinetoram diazinon naled dicofol B. thuringiensis endosulfan spinosad spirodiclofen pyriproxyfen pyrethrins plus piperonyl butoxide
c

Harvest Restrictions Days before harvest and limitations Grape
14 5 30 28 14 21 7 7 7 3 0/30* 7 30 30 30 21 0 28 3 7 0 7 7 14 0 30 7/14 30 7 1/14* 3 35* 3* 7 7

Blueberry
3 7 14 1 7 14 3 0 7 0 * 3 7 0 7 1 3 7 3 1* 3

Brambles
3 7 3 7 1 3 3 14 3 0 1 -

Strawberry
1 3 14 3 1 1 0 1 3 2 0 5* 1 2-3 0 4* 1 0 3 1 21* 3 -

12hr/5days 12 hr 12 hr 12 hr 4 hr 12 hr 12 hr 12 hr 12 hr 12 hr 12 hr 12 hr 12 hr 12 hr 12 hr 12 hr 4 hr 4 hr 12 hr 24 hr 12 hr 24 hr 48/72 hr 31-39 days 4 hr 24-48 hr 4 hr 12 hr 12 hr 12 hr 7 days* 12 hr 24 hr/14 days 4 hr 48 hr/7 days* 12 hr 24 hr 12-24 hr 24 hr 12 hr 12hr

0 1 0 3 1 -

azinphosmethyl zeta-cypermethrin plus bifenthrin phosmet methoxyfenozide acequinocyl methomyl cyfluthrin + imidacloprid chlorpyrifos malathion spirotetramat

Table continued on next page.

46

(Table 10 continued) Trade Name
Mustang Max (RUP) Mycotrol Neemix, AzaDirect (OMRI) Nexter, Pyramite Oberon Onager

Common Name
zeta-cypermethrin Beauveria azadirachtin pyridaben spiromesifen hexythiazox

Harvest Restrictions Days before harvest and limitations Grape
1 0 0 7 7

Blueberry
1 0 0 -

Brambles
1 0 0 -

Strawberry
0 0 3 -

REIa
12 hr 12 hr 4 hr 12 hr 12 hr 12 hr 12 hr 12 hr 12 hr 4 hr 12 hr 12 hr 12 hr 12 hr 0 hr 4 hr 4 hr 12 hr 48 hr 12 hr 12 hr 12 hr 12 hr

IRACb Code
3 18B 21 23 10A 4A 21 3 5 3 15 10A 1A 5 28 16 12B 4A 28 4A 10B

Platinum Provado

Portal, Fujimite Pyganic (OMRI)

fenpyroximate imidacloprid pyrethrins spinetoram cyfluthrin novaluron hexythiazox carbaryl iron phosphate spinosad kaolin flubendiamide plus buprofezin fenbutatin-oxide (hexakis) dinotefuran chlorantraniliprole + thiamethoxam etoxazole

thiamethoxam

14 0 0 3 7 0 7 0 7

60

75 3 0 8 7 0 3 0 -

50 1 7 0 1 1 3 7 0 1 0 1* 3 1

3 0 3 7 0 1 0 -

4A

Radiant Renounce (RUP) Rimon Savey Sevin Sluggo (OMRI) SpinTor Surround Tourismo Vendex (RUP) Venom, Scorpion Voliam Flexi Zeal

28* 1/28 14 14

- Not registered or recommended for the crop. *Harvest restrictions, use limitations or restricted entry intervals vary by crop, crop use, rate, or formulation. See product label for details. RUP=Restricted Use Pesticide. A license is required to purchase and apply. Record keeping is mandatory. Check with your state regulatory agency for details. a All insecticides have a Restricted-Entry Interval (REI). The restricted-entry interval is the time immediately after a pesticide application when entry into the treated area is limited. Check labels for REI and Personal Protection Equipment (PPE) required for early re-entry. Restrictions in REI may prohibit the use of certain pesticides during harvest. b IRAC code represents the mode of action of the insecticide. c Products that contain Bacillus thuringiensis for the control of caterpillars include Agree, Biobit, CryMax, DiPel, Javelin, Lepinox, and XenTari.

Note on Insecticide Resistance Management

Insects have been known to develop resistance to insecticides after repeated exposure. For insecticide resistance management, avoid successive applications of insecticides within the same group or type of chemistry. The Insecticide Resistance Action Committee codes (IRAC codes) listed in Table 10 identify the various insecticide mode of action groups. Rotating to insecticides with a different IRAC code should help avoid development of insecticide resistance.

47

Table 11. Generic Insecticides
Common name
abamectin

Original brand name (and manufacturer)
Agri-Mek 0.15EC (Syngenta)

Bacillus thuringiensis

Dipel (Abbott / Advan)

bifenthrin

Brigade 2EC and 10 WP (WSB) Capture 2EC (FMC) Sevin XLR 4EC (Bayer) Sevin 80S (Bayer) Lorsban 4EC (Dow) Lorsban 50W (Dow)

Abba 0.15EC (Makhteshim) Epi-Mek 0.15EC (Syngenta) Reaper 0.15EC (UAP) Temprano (Chemtura) Zoro (Cheminova) Agree (Advan) Biobit (Valent) CoStar (Advan) CryMax (Advan) Deliver (Advan) Jackpot (Advan) Javelin (Advan) Lepinox (Advan) Xentari (Valent) Bifenthrin 2EC (multiple) Bifenture 2EC (UPI) Discipline 2EC (Amvac) Fanfare 2EC (Makhteshim) Sniper 2EC (UAP/Loveland) Tundra 2EC (Agriliance)

Other brand names (and manufacturers)

carbaryl

Carbaryl 4L (UAP/Loveland; Drexel) Chlorpyrifos 4E (Makhteshim) Govern 4E (Tenkoz) Nufos 4E (Cheminova) Pilot 4E (Gharda) Warhawk 4E (UAP/Loveland) Whirlwind (Helena) Yuma 4E (Agriliance) Tombstone (UAP) Endosulfan 3EC (Drexel) Thionex 3EC (Makhteshim) Thionex 50W (Makhteshim) Adjourn 0.66EC (Makhteshim)

chlorpyrifos

cyfluthrin endosulfan esfenvalerate

Baythroid and Renounce (Bayer) Thiodan 3EC (no longer made) Thiodan 50WP (no longer made) Asana 0.66EC (DuPont)

imidacloprid

Provado 1.6F and 75W Solupak (Bayer) Admire 2F and Admire Pro (Bayer)

kaolin

Surround (Engelhard)

Couraze 1.6F, 75WP, 2F (Cheminova) Emida E-AG, 1.6F, 2F (Etigra) Impulse 1/6F (Albaugh) Macho 2F (Albaugh) Malice 75WSP (UAP/Loveland) Montana 2F (Rotam N.A.) Nuprid 1.6F. 2F (NUFARM) Pasada 1.6F (Makhteshim) Prey 1.6F (UAP/Loveland) Torrent 2F (Sipcam Agro) Widow 2F (UAP) Snow Plus (Wilbur Ellis)

Special Insect Pest Problems
Wasps in Fruit Plantings
Almost anywhere fruit is produced, wasps can become a nuisance, or in some cases, a severe pest. Primarily, they are pests more because they sting than because they damage much fruit. Unfortunately, very little help for controlling wasps is available to the grower.

Wasps are generally attracted to the juice and soft fruit. By far, the best key to prevention, or at least to reducing problems with wasps, is sanitation. Regular and thorough picking of all ripe fruit and fruit debris will aid in solving this problem. In addition, any item brought in by pickers that has food value (e.g., soft drinks, lunches, etc.) should be removed.

48

Periodical cicadas are orange to black, about 1 1/2 inches long, with black transparent wings, and appear from May to July. Annual or dog-day cicadas are larger, green to black, and appear each year from July to September. Ordinarily, annual cicadas do not cause much damage. Cicada males announce their presence to the voiceless females by making a continuous, high-pitched shrill sound. Vibrating membranes on the underside of the first abdominal segment produce the sound.

Periodical Cicadas

The total life cycle of the periodical cicada takes either 13 or 17 years. Otherwise, the two types have similar habits. The adult females lay eggs in rows in pockets that they cut in small branches and twigs of trees with their long, knife-like egg layer. Each female will make five to 20 of these pockets, laying 24 to 28 eggs in two rows in each pocket. The eggs hatch in six or seven weeks; the newly hatched nymphs fall to the ground and burrow until they find suitable roots, usually 1 1/2 to 2 feet beneath the soil. With their sucking mouth parts, they immediately begin to suck juices from the roots. During the spring of the 13th or 17th year, depending on which brood is involved, the cicadas burrow upward until they are about 1 inch below the soil surface. When the proper night comes, they leave the ground in large numbers and head for the nearest upright object, preferably a tree. The nymph attaches itself firmly to this object. By splitting its skin down the middle of the back, it emerges as a winged adult. At first, the adults are soft and white, but they become harder and darker as the tissues dry. Mating takes place within a few weeks, and eggs are laid for the next brood. There are 17 broods of the 17-year race (I-XVII) and 13 broods (XVIII-XXX) of the 13-year race. Each year, somewhere in the United States, at least one of these broods emerges. But any one brood will emerge only once every 13 or 17 years. Contact your Extension office for information on broods and emergence in your area.

Females prefer oak, hickory, apple, peach, and pear trees and grape vines for laying eggs. Damage occurs when the females make slits in branches and twigs in which to deposit the eggs. These small twigs and branches turn brown and die, sometimes breaking off. The damage may be severe in newly planted orchards or on new plants of shade trees or shrubs. Heavy populations of nymphs in the soil may also affect the growth and vigor of certain trees. You can prevent egg-laying damage by cicadas on young fruit and ornamental trees by covering the tree with a protective netting such as cheesecloth. Cover the tree, and tie the netting to the trunk below the lower branches. Remove the covering when egg-laying is over. If netting is not an option, you may apply insecticides when egglaying begins and repeat seven to 10 days later. Sevin is labeled for control of these insects.

Tree Crickets

Tree crickets are pests of caneberries, grapes, and blueberries. The important damage is caused by egg-laying in the canes or beneath the bark; nymphs and adults may also feed on foliage and ripening fruit. Egg-laying punctures weaken the plant. These pests are controlled by pruning and destroying damaged canes, or by spraying with carbaryl (Sevin).

Japanese Beetles

The Japanese beetle is an imported pest well known for its voracious appetite, extremely wide host range, and seemingly endless reproductive potential.

The life cycle of this insect is relatively simple. Beetles emerge from the ground in late spring, mate, lay eggs in grassy areas, and eat through midsummer. The eggs hatch into white grubs in mid- to late-summer. During the winter, the grubs burrow to below the frost line. The following spring, mature grubs burrow back to the surface, pupate, and emerge as adults. These insects are not hard to kill, but control is often difficult because beetles continue to invade plantings for extended periods. Often, adults will be so plentiful that they fall in piles after a spray.

Expect to use as many as two to four additional insecticide applications the first two to three years your planting is attacked. In later years, after local predators and parasites have recognized the Japanese beetle as a food source, populations will decline. Of course, it is possible that this insect will never get to your area, or if it does get there it may not do well. However, if it does, you had best learn how to manage these insects because you will not kill all of them!

49

Chemical Weed Control in Small Fruit Crops

Controlling weeds in small fruit plantings is extremely important. While weeds can be controlled manually, herbicides are very useful and substantially reduce labor costs. When herbicides are used properly to control weeds, plant growth may be superior, and control over insects and diseases is improved. With the continued loss of herbicide registrations for the minor crops, which includes all small fruits, closer management of the planting must be maintained. Greater care with herbicide use and cultural procedures will be required.

Proper Application

To be effective, herbicides must be selected properly for the weeds they are to control; they must be applied at the proper time, at the proper rate, and with the proper equipment. The degree of weed control depends largely on the skill of the operator. In most cases, herbicide rates given are for overall coverage (broadcast rates). For band treatment, common in small fruit plantings, reduce the amounts according to the portion of area treated. For example, if a grower wants to control weeds in a 4-foot wide band beneath a crop planted in rows 10 feet apart, the rate of herbicide needed per acre of crop will be 4/10 of the broadcast rate per acre.

Herbicides can injure fruit plants if used improperly. Therefore, sprayer adjustment and calibration should be as precise as possible to assure accurate and uniform applications. Use nozzles appropriate for herbicide application at low pressures (20-40 psi) on a fixed boom-type applicator. This type of sprayer is calibrated easily and, when designed properly, will deposit herbicide uniformly. Consider using one of the recently introduced low-drift nozzles such as the Turbo TeeJet Nozzle or the TurboDrop Nozzle. They have been designed to provide similar performance to traditional flat fan nozzles while reducing the number of very small droplets that are highly subject to drift. It is difficult to achieve a proper application of preemergent herbicides using backpack or hand sprayers.

Calibrate the sprayer carefully, and apply herbicides according to the suggested rates. Note that with many preemergent herbicides, rates should be adjusted according to soil characteristics. Generally, lower rates should be used on sandy soils with low organic matter and higher rates on heavier textured soils and those high in organic matter. With some herbicides, no rate changes are suggested. If you are unsure about an herbicide’s effectiveness or possible crop damage, test it on a small portion of the planting before using extensively. Just as with fungicides and insecticides, continued use of the same herbicide can lead to the development of herbicideresistant weeds, or the establishment of tolerant weeds. It is recommended that you do not use the same herbicide for more than two consecutive years to avoid resistance problems and improve weed control spectrum.

Site Preparation before Planting

Most perennial weeds cannot be controlled effectively in the spring before planting or once the crop is planted. Growers should strive to eradicate established perennials during site preparation in the season prior to establishing the crop. Glyphosate (a nonselective systemic herbicide) products such as Roundup, Touchdown, and many other formulations, should be applied in the summer prior to planting when weeds are actively growing. Applying glyphosate just before harvesting winter wheat or rye (this is known as a pre-harvest treatment) is an excellent way to control creeping perennials such as Canada thistle and goldenrods. Treatments applied to stubble can also be highly effective. Fields that are in hay or pasture should be allowed to grow in the spring or fall until the grass is at least 8 inches tall. Ideally, perennial broadleaf weeds should be approximately at the bud to early flowering stage at the time of treatment. Summer and early fall applications of glyphosate may be more effective against perennial broadleaf weeds than spring applications. Allow five to seven days for glyphosate to translocate throughout the root system before plowing under. This should be followed by repeated shallow cultivations as green “flushes” of weed seedlings appear. An alternative is application of paraquat (Gramoxone) for contact nonselective weed control as flushes of weed seedlings appear.

Tank Mixes

Certain herbicides may be combined in suitable tank-mixes. Consult product labels for approved combinations and recommended rates. Do not use tank mixes that are not listed on the label. By using tank mixes, a preemergence herbicide can be applied together with a postemergence herbicide to provide improved weed control, or two preemergence herbicides may be applied at reduced rates, each to gain better weed control and reduce the risks of crop damage. Always follow label recommendations.

50

Herbicide labels list the chemical names of the active ingredients and the percentage or amount of the active ingredients as “ai.” Herbicides come in various formulations and under various trade names. For the sake of brevity, only one trade name is listed in this guide. Check if other trade names are available and compare costs per acre. Always read each label carefully as rates and labeled crops may differ between labels with similar active ingredients. Be sure to follow the recommended rates as they are listed on the label of the product you plan to use.

Active Ingredient (ai)

Use Restrictions

Herbicide use is controlled by federal regulations which prescribe the crops upon which the herbicides can be used and the timing and rates for which these materials are registered. Be sure to use only registered materials at the rates recommended. Herbicides are covered by Worker Protection Standards where they apply. Restrictedentry intervals (REI) and Personal Protective Equipment (PPE) information are included on product labels. The product label is the final authority. Follow it carefully.

Good Rules to Remember

2. Application of postemergence herbicides under stress conditions to weeds, such as high temperatures in midsummer, drought, cool temperatures in the spring, etc., will result in loss of weed control. 3. Use a fixed-spray boom, appropriate nozzles, and low pressure for even application without drift. 4. Only spray when there is little or no wind (below 5 mph). 5. Adjust rates according to band width.

1. Rates recommended in this guide are mid-range rates applicable for medium to fine soils. Always refer to labels for full details on rates depending on soil type and level of organic matter.

6. Follow restrictions of herbicides on new plantings. Allow plants to become well established and soil well settled around plants before application. 7. Use herbicide sprayers for herbicides only. 8. Clean sprayers thoroughly when changing herbicides, especially when 2,4-D, Chateau, or Prowl have been used. 9. Store pesticides in locked storage. Liquid pesticides should not be allowed to freeze. 10. Protect the environment — avoid surface or ground water contamination. Dispose of excess spray material carefully and according to label directions. 11. Read the label. Understand it thoroughly. Follow its directions.

51

Herbicide Recommendations for Grape
Weed Problem Preemergence
Annual and perennial grasses and broadleaves

Material & Rate/A
Casoron CS (dichlobenil 15.3% ai) at 1.4 to 2.8 gal

Comments and Limitations
Apply from late fall through early spring. Applications should be made prior to weed emergence, or when emerged weeds are less than 2 inches tall. Use only on well established plants. Age restriction: Do not apply to vines less than one year old. Do not apply after bloom unless with a hooded or shielded application. Apply alone preemergence or tank mix with Roundup or Gramoxone postemergence. Do not incorporate. Do not allow drift to contact foliage or green bark. Max. rate is 24 oz per season. Min. 30 days between applications. Chateau also has postemergence activity. PHI=60 days. Age restriction: Do not apply to vines established less than 2 years unless they are trellised at least 3 ft from the ground or are protected by nonporous wraps, grow tubes, or waxed containers. Apply from late fall prior to soil freeze-up, to early spring prior to weed emergence. If no rainfall of 1 inch or more occurs within 24 hours after treatment, cultivate or irrigate to activate. Apply alone to weed-free soil or in tank mix with Roundup or Gramoxone. Do not allow spray to contact fruit or foliage. PHI=35 days. Non-bearing only: May only be used on crops that will not be harvested within one year of application. Apply in late summer to early fall; or in early spring prior to weed germination or anytime immediately after cultivation. Do not apply to new transplants until soil has settled with no cracks present. Rainfall or irrigation of 0.5 inch is needed within 21 days of application. Not effective on germinated weeds. Min. 60 days between applications. Max. rate is 4 lb/A per 12-month period. Dormant application only: Effective both preemergence (5-8 pt) and postemergence (2-8 pt) as a directed spray on weeds less than 4 inches. Do not apply from bud swell to harvest. Can be mixed with other preemergence herbicides, or with Roundup or Gramoxone. Max. rate is 8 pt per year. Age restriction: Do not apply to grapes established less than 3 years unless vines are on a trellis wire a minimum of 3 ft above ground. Age restriction: Use on vineyards established at least 3 years and trunks at least 1.5 inches diameter. Apply as a directed spray to soil under trellis in early spring prior to weed germination. Max. 1 application per year. On soils low in organic matter (1-2%), severe injury may result if heavy rainfall occurs soon after treatment. Apply as a directed spray in the fall after harvest prior to soil freeze-up, or early winter when temperatures are below 55°F. Rainfall or irrigation are required to activate. Max. 1 application per year and 8 lb/A per year. Kerb also has early postemergence activity. Rate depends on soil texture. Restricted use pesticide. Apply as a banded application to the base of the vines. Best results are obtained when the soil is moist at the time of application and 0.5 inch of rainfall or sprinkler irrigation occurs within 2 weeks after application. Age restriction: Do not apply to vines established less than one year. PHI=14 days.

Annual broadleaves and suppression of grasses

Chateau WDG or SW (flumioxazin 51% ai) at 6-12 oz in 10-30 gal of water

Annual grasses and broadleaves

Devrinol 50DF (napropamide 50% ai) at 8 lb in min. 20 gal of water

Most broadleaves

Gallery 75DF (isoxaben 75% ai) at 0.66-1.33 lb in min. 10 gal of water

Annual broadleaves and suppression of grasses

Goal 2XL (oxyfluorfen 2 lb ai/gal) at 5-8 pt in min. 10 gal of water Other names: Galigan, Goaltender, Oxiflo, others Karmex 80DF (diuron 80% ai) at 2-6 lb in 2540 gal of water Other names: Direx, Diuron Kerb 50WP (pronamide 50% ai) at 2-8 lb in 4050 gal of water Matrix FVN or SG (rimsulfuron 25% ai) at 4 oz in a minimum of 10 gal of water

Annual grasses and broadleaves

Annual and perennial grasses and certain broadleaves

Annual grasses and broadleaves

52

Herbicide Recommendations for Grape (continued)

Weed Problem
Annual grasses and broadleaves

Material & Rate/A
Princep 4L (simazine 4 lb ai/gal) at 2-4 qt in 25-40 gal of water Other names: Sim-Trol, Simazine

Comments and Limitations
Age restriction: Use on vineyards established at least 3 years. Apply to soil under trellis between harvest and early spring before weeds emerge. Apply alone to weed-free soil or tank mix with Roundup or Gramoxone. Max. 1 application per year. Apply only to dormant grapevines. Do not apply if buds have started to swell. In bearing vineyards, this product may be applied any time after fall harvest, during winter dormancy, and in the spring. In non-bearing vineyards this product may be applied preplant incorporated, preplant surface, or preemergence. For best results, rain or irrigation is needed within 21 days of application. Not effective on germinated weeds. Do not allow spray to contact leaves, shoots, or buds. For new plantings, do not apply until soil has settled and no cracks are present. Non-bearing only: May only be used on crops that will not be harvested within one year of application. Rainfall or irrigation of 0.5 inch is needed within 3 days of application. Not effective on germinated weeds. Min. 60 days between applications. Max. rate is 600 lb per per 12-month period. Do not apply to new transplants until soil has settled and with no cracks.. Apply as a directed spray to settled and firm soil from fall to early spring before weeds emerge. Rainfall or irrigation is needed within 4 weeks of application. Do not contact fruit or foliage. Do not apply after bud break on sandy loam or other coarse-textured soils. Check label for maximum amount allowed per year depending on soil type. Age restriction: Allow a minimum of 24 months after planting before first application. PHI=60 days. Make a single band or broadcast application to the ground beneath vines before weeds emerge. Apply alone to weed-free soil or postemergence mixed with Roundup or Gramoxone. Min. 0.5 inch of rainfall or irrigation is required for activation. Min 2.5 months between applications. Max. rate is 12 qt per year. In a new planting, apply 1-4 pt and incorporate within 24 hr. In an established planting, apply 2-4 pt prior to weed germination or immediately after removal of weeds with tillage or other herbicides and incorporate within 24 hr. PHI=60 days.

Annual grasses and certain broadleaves

Prowl H2O (pendimethalin 3.8 lb ai/gal) at 3.2-6.3 qt in min. 20 gal of water Other names: Acumen, Helena Pendimethalin, others

Annual grasses and certain broadleaves

Snapshot 2.5TG (isoxaben+trifluralin 2.5% ai) at 100-200 lb

Annual grasses and broadleaves and suppression of yellow nutsedge

Solicam DF (norflurazon 78.6% ai) at 1.25-5 lb in min. 20 gal of water

Annual grasses and certain broadleaves

Surflan 4AS (oryzalin 4 lb ai/gal) at 2-6 qt in 20-40 gal of water Other names: Oryzalin Treflan HFP 4EC (trifluralin 4 lb ai/gal) at 1-4 pt in 5-40 gal of water Other names: Trifluralin, Bayonet, others

Annual grasses and broadleaves

Postemergence
Aim 2EC or Aim 2EW (carfentrazone 2 lb ai/ gal) at 1-2 fl oz in 20 gal of water Apply any time during the season as a postemergence directed spray or as a hooded spray treatment. Always add nonionic surfactant at 0.5% v/v or crop oil at 1% v/v. Mix with Roundup or Gramoxone or labeled preemergence herbicides for broader weed control. Max. 7.9 fl oz per year. Min. 14 days between applications. PHI=3 days. Sucker management: Apply when suckers are green. Do not allow spray to contact desirable fruit, foliage, or green bark. Use as a directed spray from dormancy, prior to bloom. Repeat if needed. Keep off green stems and foliage. Do not apply more than 6.8 fl oz per acre per growing season.

Annual broadleaves

Annual broadleaves

Venue (pyraflufen ethyl 0.177 lb ai/gal) at 0.74.0 fl oz

53

Herbicide Recommendations for Grape (continued)

Weed Problem
Most annual and perennial grasses Annual broadleaves

Material & Rate/A
Fusilade DX 2EC (fluazifop-p 2 lb ai/gal) at 16-24 fl oz in 25 gal of water Goal 2XL Gramoxone Inteon 2L (paraquat 2 lb ai/gal) at 2.5-4 pt in min. 10 gal of water Other names: Firestorm Poast 1.5EC (sethoxydim 1.5 lb ai/ gal) at 1.5-2.5 pt in min. 5 gal of water Reglone 2L (diquat 2 lb ai/gal) at 1.5-2 pt in min. 15 gal of water

Comments and Limitations

Non-bearing only: May only be used on crops that will not be harvested within one year of application. Apply as a directed spray to actively growing grasses before tillering. Always add crop oil at 1% v/v or nonionic surfactant at 0.25% v/v. Avoid contact with foliage. Rainfast in 1 hour. Max. rate is 72 fl oz per year. Min. 5 days between applications. PHI=1 year. See “Preemergence” section above for details. Apply as directed spray to actively growing weeds. Repeat applications are necessary to give sustained control. Avoid contact with desired new shoots, fruit, or foliage. Apply as a coarse spray. Always add nonionic surfactant at 0.25% v/v or crop oil at 1% v/v. Best results with flat fan nozzles. Max. 5 applications per year. Sucker management: Apply when suckers are less than 8 inches tall. Do not allow spray to contact desirable fruit, foliage, or green bark. Restricted use pesticide. Apply as a directed spray to actively growing grasses before tillering. Always add crop oil at 1% v/v. Max. 2.5 pt per application and 5 pt per season. PHI=50 days. Non-bearing only: May only be used on crops that will not be harvested within one year of application. Apply as a directed spray using a shield for contact burn of weeds. Complete coverage is essential for good control. Always use a nonionic surfactant at 0.5% v/v. Can be used during site preparation and up to 1 year of harvest. Do not allow contact with green stems, foliage or fruits. PHI=1 year.

Most annual grasses and broadleaves and top kill of perennial weeds

Annual and perennial grasses

Annual grasses and broadleaves

Annual and perennial grasses and broadleaves

Rely 200 (glufosinate 18% ai (1.67 lb/gal)) at 57.5-96 fl oz in min. 15 gal of water

Age restriction: Do not apply to vines established less than 1 year unless protected from spray contact by non-pourous wraps, grow tubes, or waxed containers. Apply as a directed spray to actively growing weeds. Do not apply on desirable foliage or drift on foliage, green, or uncallused bark of vines. Do not apply more than 345 fl oz per acre per year. For spot application, mix 2.4 fl oz/gal. PHI=14 days. Sucker control: a split application approximately 4 weeks apart at 4 qt/acre is recommended or spot spray with 3 oz/gal of water. Suckers should not exceed 12 inches long. Rate depends on weed species and stage of growth. See label for details. Apply as preplant broadcast application or in fall for control of roots and rhizomes of perennial weeds or as a directed spray or wiper application (20-100% solution) to actively growing weeds in established plantings. Always add ammonium sulfate 8.5-17 lb/100 gal in hard water or drought conditions (see label). Do not allow spray to contact any part other than mature bark. Does not provide residual control; can be mixed with labeled preemergence herbicides. PHI=14 days. For contact nonselective control or burndown of a broad spectrum of actively growing weeds. Use low rate for annual weed control and high rate for maximum vegetative burndown. Use as a directed spray or shielded spray. Can be mixed with Roundup. Non-bearing only: May only be used on crops that will not be harvested within one year of application. Apply as a directed spray to actively growing grasses before tillering. Do not use if rain is expected within 1 hour. Always add nonionic surfactant at 0.25% v/v. Do not use crop oil. May be applied as a spot treatment at 0.32-0.64 fl oz per gal. Max. rate is 32 fl oz per year.

Annuals and some perennial grasses and broadleaves

Roundup WeatherMax 5.5EC (glyphosate 5.5 lb ai/gal) at 0.5-5.3 qt in 10-40 gal of water Other names: Touchdown, Honcho, Rattler, others Scythe 4.2E (pelargonic acid 4.2 lb ai/gal) at 3-10% spray solution Select 2EC (clethodim 2 lb ai/gal) at 6-8 fl oz Other names: Clethodim, Envoy

Annual and perennial grasses and broadleaves

Most annual and perennial grasses

54

Herbicide Recommendations for Blueberry
Weed Problem Preemergence
Annual grasses and broadleaves

Material & Rate/A

Comments and Limitations
Apply preemergence or early post emergence. For improved post emergence control, apply 3.0 fl oz Callisto followed 3 weeeks later by a second application at that rate. Apply prior to bloom. Include a crop oil concentrate tolerated by blueberries if applied post emergence to weeds. Apply from late fall through early spring. Applications should be made prior to weed emergence, or when emerged weeds are less than 2 inches tall. Use only on well established plants. Do not apply during new shoot emergence. Age restriction: Do not apply to plants less than one year old. Apply as a uniform band directed at the base of the bush. Avoid direct spray contact to foliage or green bark. Preferred application timing is in the fall. Do not apply more than 6 oz per acre per application. Do not make a sequential application within 30 days of the first application. Maximum rate of 12 oz per acre per 12-month period. Note: User must possess a supplemental label at the time of application. Apply from late fall prior to soil freeze-up to early spring prior to weed emergence. If no rainfall or 1 inch or more occurs within 24 hours after treatment, cultivate or irrigate to activate. Apply alone to weed-free soil or in tank mix with Roundup or Gramoxone. Do not allow spray to contact fruit or foliage. PHI=35 days. Non-bearing only: May only be used on crops that will not be harvested within 1 year of application. Apply in late summer to early fall; or in early spring prior to weed germination or anytime immediately after cultivation. Do not apply to new transplants until soil has settled with no cracks present. Rainfall or irrigation of 0.5 inch is needed within 21 days of application. Not effective on germinated weeds. Min. 60 days between applications. Max. rate is 4 lb/A per 12-month period. Age Restriction: Use only in fields established at least 1 year. Apply as a band treatment at the base of bushes. Do not apply to exposed roots. For AR and MO only: Apply 1.5-2 lb in spring and repeat after harvest in the fall. Always add a nonionic surfactant at 0.25% v/v. For IN and OH only: Apply 2-4 lb in late spring. Alternatively, apply 2 lb in fall and repeat in spring. Dormant application only: Apply as a directed spray in the fall prior to soil freeze-up or early winter when temperatures are below 55°F. Best weed control results if followed by rainfall or irrigation. Max. 1 application per year and 4 lb/A per year. Do not apply to newly transplanted blueberries until roots are well established. Kerb also has early postemergence activity. Restricted use pesticide. Apply in spring before weeds emerge and before canes leaf out, or a split application 2 qt in spring plus 2 qt in fall. Do not apply when fruit is present, or illegal residues may result. For plants established less than 6 months, apply half the above rate.

Callisto (mesotrione 4 lb ai/gal) at 3.0-6.0 fl oz

Annual and perennial grasses and broadleaves

Casoron CS (dichlobenil 15.3% ai) at 1.4 to 2.8 gal

Annual broadleaves and suppression of grasses

Chateau WDG (flumioxazine 51% ai) at 6-12 oz

Annual grasses and broadleaves

Devrinol 50DF (napropamide 50% ai) at 8 lb in min. 20 gal of water

Most broadleaves

Gallery 75DF (isoxaben 75% ai) at 0.66-1.33 lb in min. 10 gal of water

Annual grasses and broadleaves

Karmex 80DF (diuron 80% ai) at 1.5-4 lb in 25-40 gal of water Selected states only

Annual and perennial grasses and certain broadleaves

Kerb 50WP (pronamide 50% ai) at 2-4 lb in 2050 gal of water Selected states only

Annual grasses and broadleaves

Princep 4L (simazine 4 lb ai/gal) at 2-4 qt in min. 40 gal of water

55

Herbicide Recommendations for Blueberry (continued)

Weed Problem
Annual grasses and broadleaves

Material & Rate/A
Sinbar 80WP (terbacil 80% ai) at 2-3 lb in min. 25 gal of water

Comments and Limitations
Age restriction: Use only on plantings established at least 1 year. Best results when applied shortly before or after weed emergence. Avoid contact of foliage or fruit with spray or mist. Apply either in the spring or after harvest in the fall before weeds emerge or during early stage of seedling regrowth. Do not use on soils where roots are exposed. Do not use on sand or loamy sand with 1-3% organic matter. Use rate varies by soil type. Non-bearing only: May only be used on crops that will not be harvested within one year of application. Do not apply to new transplants until soil has settled. For best results, 0.5 inch of rain or irrigation is needed within 3 days of application. Not effective on germinated weeds. Min. 60 days between applications. Max. rate is 600 lb per per 12-month period. Apply as a directed spray to settled and firm soil from fall to early spring before weeds emerge. Rainfall or irrigation of 0.5 inch is needed within 4 weeks. Do not contact fruit or foliage. Do not apply after bud break on sandy loam soils. Check label for maximum amount allowed per year depending on soil type. Min. 6 months after planting before first application. PHI=60 days. Make a single band or broadcast application to the ground beneath plants before weeds emerge. Apply alone to weed-free soil or postemergence mixed with Roundup or Gramoxone. Min. 0.5 inch of rainfall or irrigation is required for activation. Min 2.5 months between applications. Max. rate is 12 qt per year. Apply to pruned blueberries in the spring before leaf emergence as a directed soil application. PHI=90 days. Some clones are susceptible to injury. Age Restriction: Use on plantings established at least 3 years.

Annual grasses and certain broadleaves

Snapshot 2.5TG (isoxaben+trifluralin 2.5% ai) at 100-200 lb

Annual grasses and broadleaves and suppression of yellow nutsedge

Solicam DF (norflurazon 78.6% ai) at 2.5-5 lb in min. 20 gal of water

Annual grasses and certain broadleaves

Surflan 4AS (oryzalin 4 lb ai/gal) at 2-6 qt in 20-40 gal of water Other names: Oryzalin Velpar 2L (hexazinone 2 lb ai/gal) at 0.5-1 gal in 20 gal of water

Annual grasses and broadleaves

Postemergence
Annual broadleaves Aim 2EC or Aim 2EW (carfentrazone 2 lb ai/ gal) at 1-2 fl oz in 20 gal of water Apply broadcast at base of trunks during dormant stage or with hooded shields between rows during growing season. Always add nonionic surfactant at 0.25% v/v or crop oil at 1% v/v. Max. 2 fl oz during dormant season and 6.1 fl oz during growing season. Min. 14 days between applications. PHI=1 day. Non-bearing only: May only be used on crops that will not be harvested within one year of application. Apply as a directed spray to actively growing grasses before tillering. Always add crop oil at 1% v/v or nonionic surfactant at 0.25% v/v. Avoid contact with foliage. Rainfast in 1 hour. Max. rate is 72 fl oz per year. Min. 5 days between applications. PHI=1 year. Apply as directed spray to actively growing weeds before emergence of new canes or shoots. Repeat applications are necessary to give sustained control. Apply as a coarse spray to avoid drift injury. Avoid contact with desired new shoots, fruit, or foliage. Always add nonionic surfactant at 0.25% v/v or crop oil at 1% v/v. Max. 5 applications per year. Restricted use pesticide.

Most annual and perennial grasses

Fusilade DX 2EC (fluazifop-p 2 lb ai/gal) at 16-24 fl oz in 25 gal of water

Most annual grasses and broadleaves and top kill of perennial weeds

Gramoxone Inteon 2L (paraquat 2 lb ai/gal) at 2-4 pt in min. 50 gal of water Other names: Firestorm

56

Herbicide Recommendations for Blueberry (continued)

Weed Problem
Annual and perennial grasses

Material & Rate/A
Poast 1.5EC (sethoxydim 1.5 lb ai/ gal) at 1.5-2.5 pt in min. 5 gal of water

Comments and Limitations
Apply as a directed spray to actively growing grasses before tillering. Always add crop oil at 1% v/v. Max. 2.5 pt per application and 5 pt per season. PHI=30 days. Non-bearing only: May only be used on crops that will not be harvested within 1 year of application. Apply as a directed spray using a shield for contact burn of weeds. Complete coverage is essential for good control. Always add a nonionic surfactant at 0.06-0.5% v/v. Can be used during site preparation and up to 1 year of harvest. Do not allow contact with green stems, foliage, or fruits. PHI=1 year. Apply as a directed spray to actively growing weeds. Do not apply on desirable foliage or drift on foliage, green or uncallused bark. Coverage of all foliage is necessary for optimum control. Max. rate is 230 fl oz per acer per year. PHI=14 days. Apply as preplant broadcast application or in fall for control of roots and rhizomes of perennial weeds or as a directed spray or wiper application (20-100% solution) to actively growing weeds in established plantings. Always add ammonium sulfate 8.5-17 lb/100 gal in hard water or drought conditions. Do not allow spray to contact any part other than mature bark. Rate depends on weed species and stage of growth. Does not provide residual control; can be mixed with labeled preemergence herbicides. PHI=14 days. For contact nonselective control or burndown of a broad spectrum of actively growing weeds. Use low rate for annual weed control and high rate for maximum vegetative burndown. Use as a directed spray or shielded spray. Can be mixed with Roundup. Non-bearing only: May only be used on crops that will not be harvested within one year of application. Apply as a directed spray to actively growing grasses before tillering. Do not use crop oil. Always add nonionic surfactant at 0.25% v/v. May be applied as a spot treatment at 0.32-0.64 fl oz per gal. Rainfast in 1 hr. Max. rate is 32 fl oz per year.

Annual grasses and broadleaves

Reglone 2L (diquat 2 lb ai/gal) at 1.5-2 pt in min. 15 gal of water

Annual and perennial grasses and broadleaves

Rely 200 (glufosinate 18% ai (1.67 lb/gal) at 57.5-96 fl oz in min. 15 gal of water Roundup WeatherMax 5.5EC (glyphosate 5.5 lb ai/gal) at 0.5-5.3 qt in 10-40 gal of water. Other names: Touchdown, Honcho, Rattler, others

Annuals and some perennial grasses and broadleaves

Annual and perennial grasses and broadleaves

Scythe 4.2E (pelargonic acid 4.2 lb ai/gal) at 3-10% spray solution.

Most annual and perennial grasses

Select 2EC (clethodim 2 lb ai/gal) at 6-8 fl oz Other names: Clethodim, Envoy

57

Herbicide Recommendations for Brambles
Weed Problem Preemergence
Annual and perennial grasses and broadleaves

Material & Rate/A
Casoron CS (dichlobenil 15.3% ai) at 1.4 to 2.8 gal

Comments and Limitations
Apply from late fall through early spring. Applications should be made prior to weed emergence, or when emerged weeds are less than 2 inches tall. Use only on well established plants. Do not apply during new shoot emergence. Age restriction: Do not apply to plants less than one year old. Apply from late fall prior to soil freeze-up to early spring prior to weed emergence. If no rainfall of 1 inch or more occurs within 24 hours after treatment, cultivate or irrigate to activate. Apply alone to weed-free soil or in tank mix with Roundup or Gramoxone. Do not allow spray to contact fruit or foliage. PHI=35 days. Non-bearing only: May only be used on crops that will not be harvested within 1 year of application. Apply in late summer to early fall; or in early spring prior to weed germination or anytime immediately after cultivation. Do not apply to new transplants until soil has settled with no cracks present. Rainfall or irrigation of 0.5 inch is needed within 21 days of application. Not effective on germinated weeds. Min. 60 days between applications. Max. rate is 4 lb/A per 12-month period. Age restriction: Apply in fields established at least 1 year. Max. 1 application per year. Do not spray exposed roots to avoid injury. IN and OH only: Apply 3 lb in late spring for raspberries. If used postemergence, avoid contact with foliage. Best results if temperature is at least 70°F with high humidity. Apply in spring before weeds emerge and before canes leaf out, or make a split application of 2 qt in spring plus 2 qt in fall. Do not apply when fruit is present, or illegal residues may result. On plants established less then 6 months, apply at half the rate. Make a single band or broadcast application as a directed spray to soil beneath the canes in the fall or early spring before fruit set and shortly before or after weed emergence. Avoid contact of foliage or fruit with spray or mist. Do not use on soils where roots are exposed. Age restriction: Use only on plantings established at least 1 year. PHI=70 days. Non-bearing only: May only be used on crops that will not be harvested within 1 year of application. For best results, 0.5 inch of rain or irrigation is needed within 3 days of application. Not effective on germinated weeds Do not apply to new transplants until soil has settled. Min. 60 days between applications. Max. rate is 600 lb per per 12-month period.

Annual grasses and broadleaves

Devrinol 50DF (napropamide 50% ai) at 8 lb in min. 20 gal of water

Most broadleaves

Gallery 75DF (isoxaben 75% ai) at 0.66-1.33 lb in min. 10 gal of water

Annual grasses and broadleaves

Karmex 80DF (diuron 80% ai) at 3 lb in 25-40 gal of water Selected states only Princep 4L (simazine 4 lb ai/gal) at 2-4 qt in min. 40 gal of water

Annual grasses and broadleaves

Annual grasses and broadleaves

Sinbar 80WP (terbacil 80% ai) at 1-2 lb in min. 20 gal of water

Annual grasses and certain broadleaves

Snapshot 2.5TG (isoxaben+trifluralin 2.5% ai) at 100-200 lb

58

Herbicide Recommendations for Brambles (continued)

Weed Problem
Annual grasses and broadleaves and suppression of yellow nutsedge

Material & Rate/A
Solicam DF (norflurazon 78.6% ai) at 2.5-5 lb in min. 20 gal of water

Comments and Limitations
Apply as a directed spray to settled and firm soil from fall to early spring before weeds emerge. Rainfall or irrigation of 0.5 inch within 4 weeks to activate. Do not contact fruit or foliage. Do not apply after bud break on sandy loam soils. Check label for maximum amount allowed per year depending on soil type. Age Restriction: Minimum 12 months after planting before first application. PHI=60 days. Make a single band or broadcast application to the ground beneath vines before weeds emerge. Apply alone to weed-free soil or postemergence mixed with Roundup or Gramoxone. Rainfall or irrigation of 0.5 inch is required for activation. Min 2.5 months between applications. Max. rate is 12 qt per year.

Annual grasses and certain broadleaves

Surflan 4AS (oryzalin 4 lb ai/gal) at 2-6 qt in 20-40 gal of water Other names: Oryzalin

Postemergence
Aim 2EC or Aim 2EW (carfentrazone 2 lb ai/ gal) at 1-2 fl oz in 20 gal of water Apply with hooded shields between rows during growing season. Always add nonionic surfactant at 0.25% v/v or crop oil at 1% v/v. Max. 25.6 fl oz per year. Min. 14 days between applications. PHI=15 days. Primocane control: Apply when primocanes are 6 inches at 6.4 fl oz in min. 20 gal of water at intervals 14-21 days. Direct sprays to bottom 18 inches of canes. Non-bearing only: May only be used on crops that will not be harvested within 1 year of application. Apply as a directed spray to actively growing grasses before tillering. Always add crop oil at 1% v/v or nonionic surfactant at 0.25% v/v. Avoid contact with foliage. Rainfast in 1 hour. Max. rate is 72 fl oz per year. Min. 5 days between applications. PHI=1 year. Apply as directed spray to actively growing weeds before emergence of new canes or shoots. Repeat applications are necessary to give sustained control. Apply as a coarse spray to avoid drift injury. Avoid contact with desired new shoots, fruit, or foliage. Always add nonionic surfactant at 0.25% v/v or crop oil at 1% v/v. Max. 5 applications per year. Restricted use pesticide. See “Preemergence” for more details. Apply as a directed spray to actively growing grasses before tillering. Always add crop oil at 1% v/v. Max. 5 pt per season. May be used as a spot treatment at 1-1.5% solution. PHI=45 days. Non-bearing only: May only be used on crops that will not be harvested within 1 year of application. Apply as a directed spray using a shield for contact burn of weeds. Complete coverage is essential for good control. Always use a nonionic surfactant at 0.06-0.5% v/v. Can be used during site preparation and up to 1 year of harvest. Do not allow contact with green stems, foliage or fruits. PHI=1 year.

Annual broadleaves

Most annual and perennial grasses

Fusilade DX 2EC (fluazifop-p 2 lb ai/gal) at 16-24 fl oz in 25 gal of water

Most annual grasses and broadleaves and top kill of perennial weeds

Gramoxone Inteon 2L (paraquat 2 lb ai/gal) at 2-4 pt in min. 50 gal of water Other names: Firestorm Karmex 80DF Poast 1.5EC (sethoxydim 1.5 lb ai/ gal) at 1.5-2.5 pt in min. 5 gal of water

Annual grasses and broadleaves Annual and perennial grasses

Annual grasses and broadleaves

Reglone 2L (diquat 2 lb ai/gal) at 1.5-2 pt in min. 15 gal of water

59

Herbicide Recommendations for Brambles (continued)

Weed Problem

Material & Rate/A
Roundup WeatherMax 5.5EC (glyphosate 5.5 lb ai/gal) at 0.5-5.3 qt in 10-40 gal of water. Other names: Touchdown, Honcho, Rattler, others

Comments and Limitations
Rate depends on weed species and stage of growth. See label for details. Apply as preplant broadcast application or in fall for control of roots and rhizomes of perennial weeds or as a directed spray or wiper application (20-100% solution) to actively growing weeds in established plantings. Always add ammonium sulfate 8.5-17 lb/100 gal in hard water or drought conditions. Do not allow spray to contact any part other than mature bark. Does not provide residual control; can be mixed with labeled preemergence herbicides. PHI=14 days. For contact nonselective control or burndown of a broad spectrum of actively growing weeds. Use low rate for annual weed control and high rate for maximum vegetative burndown. Use as a directed spray or shielded spray. Can be mixed with Roundup. Non-bearing only: May only be used on crops that will not be harvested within one year of application. Apply as a directed spray to actively growing grasses before tillering. Do not use crop oil. Always add nonionic surfactant at 0.25% v/v. May be applied as a spot treatment at 0.32-0.64 fl oz/gal). Rainfast in 1 hr. Max. rate is 32 fl oz per year.

Annuals and some perennial grasses and broadleaves

Annual and perennial grasses and broadleaves

Scythe 4.2E (pelargonic acid 4.2 lb ai/gal) at 3-10% spray solution

Most annual and perennial grasses

Select 2EC (clethodim 2 lb ai/gal) at 6-8 fl oz Other names: Clethodim, Envoy

60

Herbicide Recommendations for Strawberry
Weed Problem Preemergence Material & Rate/A Comments and Limitations
Pre-transplanting: Apply a minimum of 30 days before transplanting and before laying plastic. Can be mixed with Gramoxone or Roundup. Preemergence on dormant plants: Add crop oil at 1% v/v or nonionic surfactant at 0.25% v/v to help control emerged broadleaf weeds. Do not apply to frozen ground. Shielded or hooded application in row middles: Do not apply after fruit set and not over strawberry plants. Apply prior to weed emergence or mixed with Gramoxone or Roundup. Note: Supplemental label must be in user’s possession. At planting: Apply 12 pt at transplanting. Can be preplant incorporated. Clean cultivate or hoe if necessary before treatment. Established: Apply in early fall or in early spring immediately after mulch removal. Clean cultivate or hoe if necessary before treatment. Applications may be made directly over the plants without injury. Do not apply from bloom through harvest. Apply in spring immediately after removal of straw mulch to a weed-free soil or in fall before straw is mulched over the plants and before soil freeze-up. Cultivate or irrigate 1 inch within 24 hr of application. Do not apply from bloom to harvest. For strawberries not grown on plastic, apply to weed-free soil surface. Delay application until desired number of daughter plants have become established. If no rainfall occurs within 24 hours after treatment, cultivate or irrigate 1 inch to incorporate. Devrinol 2EC can be used in plant bed preparation if plastic mulch is used. Preplant incorporate 2 gal/A to a weed-free soil within 24 hrs before laying plastic. Maximum 1 application per year.

Annual broadleaves and suppression of grasses

Chateau WDG (flumioxazin 51% ai) at 3 oz

Annual grasses and some broadleaves

Dacthal 6F (DCPA 6 lb ai/gal) at 8-12 pt in min. 20 gal of water

Annual grasses and certain broadleaves

Devrinol 50DF (napropamide 50% ai) at 8 lb in min. 20 gal of water

Annual broadleaves, especially winter annuals

Goal 2XL (oxyfluorfen 2 lb ai/gal) at 1-2 pt in min. 40 gal of water Other names: Galigan, Goaltender, Oxiflo, others

Fallow bed preparation only: Apply with Roundup for control of winter annual broadleaves a minimum of 30 days before transplanting. Fallow bed should be worked thoroughly to a depth of 2.5 inches prior to planting.

Annual grasses and certain broadleaves

Prowl H2O 3.8E (pendimethalin 3.8 lb ai/gal) at 1.5-3.0 pt in min. 10 gal of water. Rate depends on soil type. See label for details.

Apply as a broadcast spray before transplanting or after transplanting but before growth starts. May not be used on beds that will be covered in plastic. A second application may be used in a band between rows up to 35 days before harvest. Do not allow the spray to contact strawberry foliage. May be applied to strawberries in fall or winter dormancy prior to the onset of new growth. May be applied to perennial strawberries during renovation after foliage has been mowed, but prior to the onset of new growth. Adequate rainfall or irrigation after application prior to weed emergence will provide the most benefit. Max. 3 pt per application and 6 pt per season. PHI=35 days. Do not use if row is later to be covered with plastic. Supplemental label must be in the possession of the user at the time of application.

61

Herbicide Recommendations for Strawberry (continued)

Weed Problem

Material & Rate/A

Comments and Limitations
Planting year: Apply 2-3 oz immediately after transplanting but before runners start to root. Application of 2-6 oz can also be made to dormant plants in late summer or early fall for control of winter annual weeds. If transplants have started to develop new foliage in the spring, or are not dormant in late summer or early fall at time of application, then 0.5-1 inch of rain or irrigation is necessary to wash Sinbar off. Do not use on soils with less than 0.5% organic material, as plant injury can occur. Harvest years: Apply 4-8 oz after post-harvest renovation and before new growth begins in midsummer. An additional 4-8 oz prior to mulching in late fall is recommended to extend weed control through harvest of the following year. Max. 8 oz per season. PHI=110 days. Strawberry varieties vary in Sinbar sensitivity. See Table 5 on page 42 for varietal sensitivity, or conduct a field test before adoption as a normal practice, particularly for newer varieties.

Annual grasses and broadleaves

Sinbar 80WP (terbacil 80% ai) at 2-8 oz in min. 20 gal of water

Postemergence
Annual broadleaves Aim 2EC or Aim 2EW (carfentrazone 2 lb ai/ gal) at 0.5-2 fl oz in min. 10 gal of water 2,4-D amine (4lb ai/gal) at 2-3 pt in 25-50 gal of water Other names: Formula 40, Amine 4, Clean Amine, others Fusilade DX 2EC (fluazifop-p 2 lb ai/gal) at 16-24 fl oz in 25 gal of water Goal 2XL Gramoxone Inteon 2L (paraquat 2lb ai/gal) at 2-4 pt in min. 20 gal of water Other names: Firestorm Poast 1.5EC (sethoxydim 1.5 lb ai/gal) at 1-2.5 pt in 25 gal of water Roundup WeatherMax 5.5EC (glyphosate 5.5 lb ai/gal) at 0.5-5.3 qt in 10-40 gal of water. Other names: Touchdown, Honcho, Rattler, others Apply with hooded shields between rows during growing season to actively growing weeds. Best results when weeds are <4 inches and rosettes <3 inches across. Always add nonionic surfactant at 0.25% v/v or crop oil at 1% v/v. Max. 6.1 fl oz per year. Min. 14 days between applications. PHI=0 day. For established plantings only: Apply in early spring when strawberries are dormant or immediately after last picking. Do not apply unless possible injury to the crop is acceptable. Do not tank mix with Poast. Several 2,4-D amine products are available, but only a few are labeled for strawberry. Check label for specific use directions. Non-bearing only: May only be used on crops that will not be harvested within 1 year of application. Apply as a directed spray to actively growing grasses before tillering. Always add crop oil at 1% v/v or nonionic surfactant at 0.25% v/v. Avoid contact with foliage. Rainfast in 1 hour. Max. rate is 72 fl oz per year. Min. 5 days between applications. PHI=1 year. See “Preemergence” section above for details. Apply as a directed spray between rows, using shields to protect strawberry plants. Do not allow spray to contact foliage. Add a nonionic surfactant at 0.25% v/v or crop oil at 1% v/v. Max. 3 applications/year. Restricted use pesticide. PHI=21 days. Apply to actively growing grasses before tillering. Always add crop oil at 1% v/v. May be used as a spot treatment at 1-1.5% spray solution. Max. 2.5 pt per application and 2.5 pt per season. Caution: Application of Poast up to six weeks after Sinbar application can occasionally cause strawberry leaf injury. PHI=7 days. Apply as pre-plant broadcast application or in fall prior to planting for control of roots and rhizomes of perennial weeds or as a directed spray or wiper application (20-100% solution) to actively growing weeds between rows in established plantings. Always add ammonium sulfate 8.5-17 lb/100 gal in hard water or drought conditions. Do not allow spray to contact any desired plants. Does not provide residual control; can be mixed with labeled preemergence herbicides. Rate depends on weed species and stage of growth. PHI=14 days.

Annual and some perennial broadleaves

Most annual and perennial grasses Annual broadleaves Most annual grasses and broadleaves and top kill of perennial weeds

Most annual and perennial grasses (postemergence only)

Annuals and some perennial grasses and broadleaves

62

Herbicide Recommendations for Strawberry (continued)

Weed Problem
Annual and perennial grasses and broadleaves

Material & Rate/A
Scythe 4.2E (pelargonic acid 4.2 lb ai/gal) at 3-10% spray solution

Comments and Limitations
For contact nonselective control or burndown of a broad spectrum of actively growing weeds. Use low rate for annual weed control and high rate for maximum vegetative burndown. Use as a directed spray or shielded spray. Can be mixed with Roundup. Apply as a directed spray to actively growing grasses before tillering. Always add crop oil at 1% v/v. Rainfast in 1 hr. Max. rate is 32 fl oz per year and 8 fl oz per application. Min. 14 days between applications. May be applied as a spot treatment at 0.32-0.64 fl oz/ gal. PHI=4 days. For perennial strawberries only. Make one application after harvest. Do not tank mix with other herbicides. Make only one application per crop year. Solix 3 is not registered in all states. Check with your State Chemist Office to be sure. Stinger has 24(c) Special local needs registration in several states. Check with your State Chemist Office to be sure. May be applied up to the maximum application rate of 1.5 pt per acre per application using ground equipment. Make broadcast applications in 20 to 40 gal water per acre. Reduce rates proportionally for band or strip treatment. Do not apply more than 3 pt per acre per season. Apply with nonionic surfactant or crop oil concentrate. Annual strawberries grown on plastic mulch: Make one banded application before laying plastic and after final land preparation, and prior to transplanting the crop. For application between rows of plastic mulch, apply as a direct-shielded application between mulched beds. Do not allow contact with strawberry plants. PHI=60 days. Perennial strawberry (matted row): Make 2 applications: the first can be made after the last harvest or following bed renovation, the second can be made when plants are dormant during late fall to early spring. PHI=120 days.

Most annual and perennial grasses

Select 2EC (clethodim 2 lb ai/gal) at 6-8 fl oz Other names: Clethodim, Envoy

Annual and perennial broadleaves

Solix 3 (clopyralid 3 lb ai/gal) at 2/3 pint Other names: Stinger

Annual grasses and broadleaves

Ultra Blazer 2E (acifluorfen 2 lb ai/gal) at 1.5 pt in min. 20 gal of water

63

Table 12. Herbicides Registered for Weed Control in Small Fruit
Trade Name
Callisto

Common Name
mesotrione dichlobenil DCPA flumioxazin

Crop Use
blueberry blueberry, brambles, grape strawberry grape, strawberry

Preemergence control of grasses and/or broadleaf weeds
Casoron, Norosac Chateau

Risk of Resistance
medium medium medium low low medium medium low medium medium medium medium low low medium high high low high medium medium medium low medium low

Signal Word

REI
12 hr 12 hr 12 hr 12 hr 24 hr 12 hr 12 hr 24 hr 24 hr 12 hr

HRAC1
F2 L K1 K3 L C2 E E

caution caution caution caution caution caution warning caution caution caution

Dachtal

Devrinol Gallery Goal Karmex Princep Sinbar

napropamide isoxaben oxyfluorfen diuron pronamide simazine terbacil pendimethalin

blueberry, brambles, grape, strawberry

grape, strawberry blueberry, grape

nonbearing blueberry, brambles, grape

Kerb RUP Prowl H2O Snapshot Surflan Treflan Velpar Solicam

blueberry, brambles, grape blueberry, brambles, grape strawberry, grape blueberry, brambles, strawberry

caution

12 hr

K1 K1 C1 F1 L+K1 K1 K1 C1 A A Z A E E O E O C1

Postemergence control of grasses
Fusilade Poast Scythe Select Aim fluazifop sethoxydim pelargonic acid clethodim carfentrazone 2,4-D amine oxyfluorfen clopyralid

oryzalin trifluralin hexazinone

norflurazon

isoxaben + trifluralin

blueberry, brambles, grape grape blueberry

blueberry, brambles, grape

nonbearing grape, blueberry, brambles

caution caution caution caution caution danger

12 hr 12 hr 12 hr 24 hr 12 hr 48 hr

Postemergence control of broadleaf weeds
Amine 4 Goal Solix 3

nonbearing blueberry, brambles, grape & strawberry blueberry, brambles, grape, strawberry blueberry, brambles, grape, strawberry strawberry & nonbearing blueberry, brambles, & grape grape, blueberry, brambles, strawberry

caution warning warning warning caution warning caution caution poison caution medium warning danger danger

12 hr 12 hr 12 hr 12 hr 12 hr 24 hr 12 hr 48 hr

strawberry

Venue

Postemergence control of grasses and broadleaf weeds
Gramoxone Inteon RUP Roundup Reglone paraquat glyphosate diquat glufosinate acifluorfen

pyraflufen ethyl

grape

grape, strawberry strawberry

medium

12 hr

Rely Ultra Blazer
1

blueberry, brambles, grape nonbearing grape, blueberry, brambles grape strawberry

blueberry, brambles, grape, strawberry

medium low medium low medium

12 hr 12 hr 24 hr 12 hr 48 hr

D G D H E

HRAC= Herbicide Resistance Action Committee Groups. Herbicides in the same HRAC group have similar modes of action for killing weeds. To reduce the risk of herbicide resistance, do not rely on herbicides in a single HRAC group year after year.

64

Table 13. Relative Effectiveness of Herbicides for Small Fruit Crops
Annual Broadleaves Perennial Weeds

Grasses

Barnyardgrass

Crabgrass

Herbicide
Goosegrass Chickweed Galinsoga Henbit Jimsonweed Ladysthumb Mustards Nightshades Pigweed Purslane Ragweed Smartweeds Velvetleaf Violet, Field Dandelion

Foxtails

Panicum, Fall

Groundsel, Common

Lambsquarters

Morningglory, Annual

Pineappleweed

Shepherdspurse

Nutsedge, Yellow

Thistle, Canada

Callisto Casoron Chateau Dacthal Devrinol Gallery Goal Karmex Kerb Princep Prowl Sinbar Snapshot Solicam Surflan Treflan N N N G F G G G G G N G N N N N G F G G G G G N N N N N N G N G G G G G N G N F N G N N G N G G N N N G N N N N G F N F G N N G N G G N N G G N N G N G N N N F N N G G N N G N N N G F F F N G G N G G N G G N G G F N F F N G G N F G G F G G N G G N G G N N G G G G F N F G N G G N N G G G G N N G G N G G N N G N G G F N G G N G G N G G G F G F N G G N G G N N G G N N N N N G N N G N G N G N G G N F G N G G N N G G G F F N N G N G G N G G G G F G N F N N G G N N N G

Preemergence
N G N G G N F F F G G G F G G G N G N G G N F G G G G N G G G G N G N G G N N F G G G G G G G G G G F F G G N G G G G G G G G P G N N N N N N G N G F G G G F N N G N N N G G G N G N F G F F N N G N N N G F G G G N G G F G G G N G N N N G N N F N G G G N N G G F N N G G N N N N G G G F P G G G F F G G G G G G G G G G F F P F N N N F F G G N N F N N N N G N N N G G G G G N G G G N F G P G N N G G G G G N G F F F N G G G F G G G G N G F G G G G G N G N N G G N P N G N N G G N N N G G F G G F G G G F G N F G G G G F N N G N G F G N G N G F N N G G N N N F G G G G G G G G N G G F N N N F N F N F G F N F N F F F N F G N G G N F G G

2,4-D Aim Chateau Fusilade Goal Gramoxone Poast Rely Roundup Select Solix 3 Ultra Blazer Venue

Postemergence

N N N G G N N G G G G G G G G G

N G N G G N N G N G G G G G G G

G G F N N G F P N F F N G G F N F G G N F G N F G N N G G

N N N G P N G N N P N N N N N N P N N N G G N N G N N N N

N G N N N N N N N N N G G N N N G N N N N N N G G N G P G

F N N N N N N N N F N F N F N N N N N N N N N F F N N P N

N G N N N N N N N N N N N N N N F F N N N N N G G N G P N

N N N G N G G G G G N N N

N N N G F G G N G G N N N

Rating Key: G=Good, F=Fair, P=Poor, N=None; based on product labels.

Woodsorrel, Yellow

N G N N N G F N N N N N G N N F N N N N F N N N G N N P N

65

66
FUNGICIDES/BACTERICIDES
Manufacturer Syngenta 264-1052 12 hrs 3/1 3/1 12 hrs 1/3 >5436 1/3 >5000 73314-1 24 hrs 1/2 >5000 1 hr 2/3 100-1098 4 hrs 1/3 >5000 >4000 >5000 >5000 >2000 EPA Reg # REI1 Runoff/ Leach Potential2 Oral LD50 Dermal LD50 Class methoxyacrylate - 11 Makhteshim-Agan Makhteshim-Agan BASF Bayer CropScience Arysta DowAgrosciences DowAgrosciences Cerexagri-Nisso Cerexagri-Nisso Cerexagri-Nisso ChemOne Ltd Arysta 56576-1 NuFarm 66330-362 NuFarm 55146-64 Arysta 55146-57 Arysta 66330-48 Arysta 66330-239 BASF 66222-58-66330 Makhteshim-Agan 7969-187 24-72 hrs 24-48 hrs 24-48 hrs 12 hrs Syngenta 66222-42 24 hrs Gowan 50534-188-100 12 hrs Bayer CropScience 10163-189 12 hrs 2/3 2/3 Helena 264-737 12 hrs 3/2 Bayer CropScience 5905-541 4 hrs 3/1 NuFarm 264-516 12 hrs 3/3 Agrichem 55146-96 12 hrs Makhteshim-Agan 71962-1 4 hrs Bayer CropScience 66222-121 Bayer CropScience 264-974 Natural Industries 66222-154 66222-150 7969-197 264-749 66330-35 62719-463 62719-387 4581-413-82695 4581-397-82695 4581-396-82695 12 hrs 12 hrs 12 hrs 12 hrs 12 hrs 24 hrs 24 hrs 12 hrs 24 hrs 24 hrs 24 hrs 12 hrs 24 hrs 24 hrs 2/3 2/3 1/2 1/2 3/3 2/2 1/3 1/3 1/3 1/3 1/3 2/3 1/3 1/3 3/3 3/3 3/3 1/3 1/2 >5000 3750 >2000 2593-4865 >2000 3749-5000 >5000 300-960 >4470 >2000 330 9000 1630 1346 >2000 >5000 >2000 >2000 972-2000 9000 >4640 812-1470 2700 2860 >5000 >5000 >2000 >2000 >2000 >2000 >2000 >5000 >2000 >2000 >4000 >2000 >5000 >5000 >5000 >2000 >5000 >2000 >5000 >2000 >6320 >2000 >5000 >2000 >2000 chloronitrile - M5 chloronitrile - M5 pyridine-carboxamide -7 triazole - 3 hydroxyanilide - 17 triazole - 3 dithiocarbamate - M3 inorganic - M1 inorganic/dithiocarmabate - M1/M3 inorganic - M1 inorganic - M1 chloronitrile - M5 inorganic - M1 inorganic - M1 hydroxyanilide/phthalimide - 17 & M4 phthalimide - M4 phthalimide - M4 methoxycarbamate - 11 triazole - 3 chloronitrile - M5 aromatic hydrocarbon - 14 triazole - 3 not classified ethyl phosphonate - 33 glucopyranosyl antiobiotic - 25 glucopyranosyl antiobiotic - 25 glucopyranosyl antiobiotic - 25 triazole/oximino acetate - 3 & 11 glucopyranosyl antiobiotic - 25

Record Keeping Requirements for Production Chemicals

The following list contains the trade name, common name, manufacturer, EPA registration number, restricted entry interval (REI), runoff potential and leaching potential for pesticides registered for use in Michigan. The list was prepared to provide growers a convenient place to find information for pesticide recordkeeping requirements. This is a partial list of the commonly used pesticides on fruit crops in Michigan and is not intended to be a complete list. It is the grower’s responsibility to confirm the registration number, REI, proper use, and other information for specific pesticides. Always read and follow label directions. Source: Michigan Fruit Management Guide (Michigan State University Extension publication E-154). Used with permission of Michigan State University.

Trade Name

Common Name

Equus 720 SST

Equus 500 ZN

Endura

Elite 45 DF

Elevate

Eagle

Dithane M-45

Cuprofix Ultra Disperss

Cuprofix MZ Disperss

Cuprofix Disperss

Copper Sulfate

Chlorothalonil 720

Champ Formula 2

Champ DP

Captevate

Captec 4 FL

Captan 80 WDG

Cabrio

Bumper

Bravo WeatherStik

Botran 75 W

Bayleton 50 DF

Armicarb 100

AlietteWDG

Agri-Mycin 17 Ag

AgriFos

Ag Streptomycin

Ag Streptomycin

Adament

Actinovate

Abound

chlorothalonil

chlorothalonil

boscalid

tebuconazole

fenhexamid

myclobutanil

mancozeb

basic copper sulfate

basic copper sulfate+mancozeb

basic copper sulfate

copper sulfate

chlorothalonil

copper hydroxide

copper hydroxide

fenhexamid+captan

captan

captan

pyraclostrobin

propiconazole

chlorothalonil

dicloran

triadimefon

potassium bicarbonate

fosetyl-Al

streptomycin

potassium phosphite

streptomycin sesquisulfate

streptomycin sesquisulfate

tebuconazole+trifloxystrobin

streptomyces lydicus

azoxystrobin

Record Keeping Requirements for Production Chemicals — FUNGICIDES/BACTERICIDES (continued)
Bayer CropScience 62719-441 12 hrs 3/3 10000 >2000 >5000 >2000 >1000 1/3 >2000 >1000 3129 >2000 12 hrs 1/3 4000 >2000 triazole - 3 triazole - 3 2/3 >5050 >2000 68573-2 48 hrs 1/3 >5000 >5000 oximino acetate - 11 4 hrs 3/1 not classified Taminco, Inc. 264-777 12 hrs 2/3 >5050 >2000 oximino acetate - 11 Makhteshim-Agan 45728-7 24 hrs 3/2 >5000 >4000 dithiocarbamate - M3 66222-149 12 hrs 2/3 >5000 >2000 chloronitrile - M5

Presidio BASF Helena Chemtura

Polyram 80 DF Valent

PlantShield Loveland 59639-140

Phostrol Bioworks 7969-105-34704 68539-4

Penncozeb 80 WP NuFarm 55146-83

Penncozeb 75 DF Cerexagri-Nisso 4581-358-82695

Oxidate Cerexagri-Nisso 4581-370-82695

Orius Biosafe Systems 70299-2 SL

Orbit Makhteshim-agan 264-749-66222 12 hrs

Nova 40 W Syngenta 100-702 12 hrs

Nevado DowAgrosciences 62719-411 24 hrs

Mycoshield Ag Terramycin Makhteshim-agan 66222-144 24-48 hrs

Miller Sulforix NuFarm 55146-97 12 hrs 3/3 2/3 2/2 -/-

Microthiol Disperss Miller 66196-3-72 48 hrs

Messenger Cerexagri-Nisso 4581-373-82695 24 hrs 1/1

Mertect 340-F Eden Bioscience 69834-2 4 hrs 2/3

ManKocide Syngenta 100-889 12 hrs 1/3

ManKocide Griffin 1812-360 24 hrs 1/3 -

Maneb 80 W DuPont 352-690 24 hrs 1/3 2532

Maneb 75 DF Cerexagri-Nisso 4581-255-82695 24 hrs 1/3 >5000

Lime Sulfur Solutions Cerexagri-Nisso 4581-371-82695 24 hrs 1/3 -/>5000

Kumulus DF Miller 66196-2-72 48 hrs -

Kocide 101 Arysta 51036-352-66330 24 hrs 1/1 >2200

JMS Stylet Oil Griffin 1812-288 24 hrs 1/3 -/833

Iprodione 50WP AG JMS Flower Farms 65564-1 4 hrs

Iprodione 4L AG Flowable Micro-Flo 51036-341 24-48 hrs 3/3

Inspire Super MP Arysta 66330-297 24-48 hrs

Indar Syngenta 100-1262 12 hrs

Gem DowAgrosciences 62719-421

Gavel Bayer CropScience 264-781

Fosphite DowAgrosciences

Flint JH Biotech

Ferbam Granuflo

Equus DF

fluopicolide

metiram

Trichoderma harzianum

phosphoric acid

mancozeb

mancozeb

hydrogen dioxide

tebuconazole

propiconazole

myclobutanil

iprodione

oxytetracycline

lime sulfur

sulfur

harpin protein

thiabendazole

mancozeb+copper hydroxide

mancozeb+copper hydroxide

maneb

maneb

lime sulfur

sulfur

copper hydroxide

paraffinic oil

iprodione

iprodione

difenoconazole

fenbuconazole

trifloxystrobin

mancozeb+zoxamide

potassium salts

trifloxystrobin

ferbam

chlorothalonil

dithiocarbamate/toluamide - M3 & 22

12 hrs

24 hrs 12 hrs - 5 days

SL

4 hrs

24 hrs

24 hrs

2/1

2/3

2/3

3/1

1/3

1/3

3/3

1/2

1/2

>2000 1/2

>5000 1490

-

>5000

>5000

>4470

330

2593-4865

1310

>1000

>1170

>5000

820

>2000

>5000

>5000

>4000

>2000 >2000

-

>5000

>2000

>2000

1410

>2000

>5000

>5000

>2000

>2000

>2000

>2000

>6000

>5050

-

>5000

>2000

>2000

pyridinylmethyl-benzamide-43

diothiocarbamate - M3

-

-

dithiocarbamate - M3

dithiocarbamate - M3

-

triazole - 3

triazole - 3

triazole - 3

dicarboximide - 2

tetracycline antibiotic - 41

inorganic - M2

inorganic -M2

-

benzimidazole - 1

dithiocarbamate/inorganic - M3 & M1

dithiocarbamate/inorganic - M3 & M1

dithiocarbamate - M3

dithiocarbamate - M3

inorganic - M2

inorganic - M2

inorganic - M1

not classified

dicarboximide - 2

dicarboximide - 2

Pristine

boscalid+pyraclostrobin

7969-199 42519-22-5905 69526-9 62719-346 400-431

Ridomil Gold EC

Revus

Quintec

Quash 50WDG

Quali-pro Chlorothalonil DF Valent

Purespray Green

PropiMax Farmsaver.com Petro-Canada

ProPhyt DowAgrosciences

Procure 50 WS

metalaxyl-M

mandipropamid

quinoxyfen

metconazole

chlorothalonil

petroleum distillates

propiconazole

potassium salts

triflumizole

Syngenta

Syngenta

DowAgrosciences

100-801

100-1254

62719-375

59639-147

72167-25-73220

48 hrs

4 hrs

12 hrs

12 hrs

12 hrs

4 hrs

24 hrs

4 hrs

12 hrs

3/3

-/-

1/3

1/2

2/3

-/-

1/2

3/1

3/2

1172

>5000

>2000

1750

-

>5000

-

>5000

2230

>2020

>5000

>2000

>5000

-

>2000

-

>4000

>2000

acylalanine - 4

mandelic acid amides - 40

quinoline - 13

triazole - 3

chloronitrile - M5

-

triazole - 3

-

imidazole - 3

pyridine - carboxamide/methoxycarbamate - 7 & 11

67

68
Gowan 48813-1-54705 264-788 100-969 69592-11 69592-13 7969-154 67425-99999 100-953 55260-6 352-604 70506-113 72167-10-66222 45728-21 73545-11-70506 70051-2 100-828 10163-275 34704-734 4581-140-82695 45728-12 12 hrs 12 hrs 12 hrs - 7 days 24 hrs 12 hrs 4 hrs 12 hrs 12 hrs 24 hrs 48 hrs 48 hrs 48 hrs 2/3 2/3 1/2 2/3 3/3 2/3 -/1/3 2/1 1/1 3/2 3/2 12 hrs 1/3 >5000 >5000 >5000 >2000 >5000 2400 >5000 >5000 >5000 >2000 5000 1899 478 12 hrs NA 4 hrs 4 hrs 12 hrs NA 3/2 1/3 2/3 2/3 3/3 -/4505-5000 >5050 >5000 >5000 >5000 4 hrs -/>5000 Bayer CropScience 10163-273 12 hrs 2/1 1057-1270 Bayer CropScience 264-453 24-48 hrs 3/3 >5000 >2000 >2000 Bioworks 264-482 24-48 hrs 3/3 1170 >2000 Syngenta 68539-3 NA 2/3 Syngenta 100-798 48 hrs 3/3 >5000 >2000 Syngenta 100-804 48 hrs 1/3 550 >2020 100-803 48 hrs 1/3 >5000 >2000 acylalanine - 4 acylalanine/inorganic - 4 & M1 acylalanine/dithiocarbamate - 4 & M3 pyrimidine - 3 >2000 >5000 >2020 >2000 >5000 >2000 >2000 >2000 >2000 >2000 >2000 >2000 >2000 >2000 >4000 >2000 >5000 >2000 dicarboximide - 2 dicarboximide - 2 Bayer CropScience Syngenta Agraquest Agraquest BASF Ecosmart Technologies Syngenta Agriphar S.A. DuPont United Phosphorus Makhteshim-Agan Taminco, Inc. United Phosphorus Certis USA Syngenta Gowan Loveland Cerexagri-Nisso Taminco, Inc. Lawn & Garden Products anilinopyrimidine - 9 phenylpyrrole - 12 oximino acetate - 11 anilino-pyrimidine/phenylpyrrole - 9 & 12 guanidine - M7 oxazolidine-dione/cyanoacetamideoxime - 11 & 27 triazole - 3 thiophanate - 1 dithiocarbamate - M3 thiophanate - 1 anilino-pyrimidine - 9 pyrimidine - 3 inorganic - M2 dithiocarbamate - M3 dithiocarbamate - M3

Record Keeping Requirements for Production Chemicals — FUNGICIDES/BACTERICIDES (continued)

Rubigan 1 EC

Rovral 50 WP

Rovral 4 F

Rootshield

Ridornil Gold GR

Ridomil Gold/Copper

Ridomil Gold MZ

fenarimol

iprodione

iprodione

Trichoderma harzianum

metalaxyl-M

metalaxyl-M/copper

metalaxyl-M/mancozeb

Saf-T-Side

petroleum distillates

Scala Scholar Serenade Max Sonata Sovran Sporan

pyrimethanil fludioxonil Bacillus subtilis Bacillus pumilus kresoxim-methyl various oils

Switch

cyprodinil+fludioxonil

Syllit FL

dodine

Tanos

famoxadone/cymoxanil

*=Restricted use pesticide. 1 REI=Restricted entry interval. SL=See label. Some REIs vary by crop, always check the label. 2 1=high, 2=intermediate, 3=low. These leaching/runoff potential ratings are from the USDA-Natural Resources Conservation Service WIN-PST Pesticide Properties database: www.wsi.nrcs.usda.gov/products/W2Q/ pest/pest_mgt.html. 3 Chemical group and Fungicide Resistance Action Committee codes taken from www.frac.info.

Tebuzol 45DF Thiophanate Methyl Thiram Granuflo Topsin-M 70 WP Trilogy Vangard WG Vintage Wettable Sulfur Ziram 76 DF Ziram Granuflo

tebuconazole thiophanate-methyl thiram thiophanate-methyl neem oil cyprodinil fenarimol sulfur ziram ziram

Record Keeping Requirements for Production Chemicals HERBICIDES
Manufacturer REI1 12 hrs 12 hrs 12 hrs 12 hrs 12 hrs 12 hrs 24 hrs 12 hrs 48 hrs 12 hrs 12 hrs 24-48 hrs 12-24 hrs 12 hrs 24 hrs 4 hrs 12 hrs 12 hrs 12 hrs 24 hrs 12 hrs 12 hrs 4 hrs 24 hrs 12 hrs 12 hrs 12 hrs 24 hrs 24 hrs 12 hrs 12 hrs 12 hrs 48 hrs 48 hrs 48 hrs 4077 >2000 >5000 >5000 >5000 >5000 >5000 >5000 866-1058 >5000 >5000 2985-4594 310 >5000 >5000 >5000 4285-5000 >5000 >5000 3956 1910-2170 >5000 5108 500-2784 1140 2084 >5000 12600 >5000 >5000 2020 4120 1161 >4000 >2000 >5000 >5000 >2000 >2000 >5000 >2000 >2000 >2000 >5000 >4000 >2000 >5000 >10000 >2000 >4000 >2000 >5050 >2000 1380-1400 >5000 >5000 >5000 >2000 >2000 >5000 >10000 >5000 >5000 >2000 >5000 1544 Dermal LD50 Class triazolinone - E (14) 28 triketone - F1 (27) nitrile - L (20) nitrile - L (20) N-Phenylphthalimide - E (14) acetamide - K3 (15) pyridazinone - F1 (12) phenoxy-carboxylic-acid - O (4) aryloxyphenoxy-propionate - A (1) benzamide - L (21) diphenylether - E (14) bipyridylium - D (22) urea - C2 (7) benzamide - K1 (3) sulfonylurea - B (2) cyclohexanedione - A (1) triazine - C1 (5) triazine - C1 (5) dinitroaniline - K1 (3) phosphinic acid - H (10) glycine - G (9) glycine - G (9) cyclohexanedione - A (1) uracil - C1 (5) pyridazinone - F1 (12) triazolinone - E (14) pyridine carboxylic acid - O (4) dinitroaniline - K1 (3) pyridine carboxylic acid - O (4) glycine - G (9) Pyrimidindione - E (14) diphenylether - E (14) triazinone - C1 (5) phenoxy-carboxylic-acid - O (4) FMC Bayer Syngenta Chemtura Chemtura Valent United Phosphorus Amvac NuFarm Syngenta Dow Agrosciences Dow Agrosciences Syngenta Griffin DowAgrosciences DuPont BASF Syngenta Syngenta BASF Bayer Cropscience Monsanto Monsanto Valent TKI Syngenta FMC Dow Agrosciences United Phosphorus Dow Agrosciences Syngenta BASF United Phosphorus DuPont NuFarm 279-3242 264-1025 100-1131 400-541 400-168 59639-119 70506-36 5481-506 228-357 100-1070 62719-145 62719-424 100-1217 1812-362 62719-397 352-671 7969-58 100-603 100-526 241-337 264-660 524-445 524-475 59639-3 61842-13 100-849 279-3220 62719-577 70506-43 62719-73 100-1117 7969-276 70506-60 352-392 71368-1 EPA Registration # Oral LD50 Runoff /Leach Potential2 3/3 -/3/3 2/2 2/2 2/3 2/2 2/2 3/1 2/3 1/3 2/3 1/3 2/2 2/1 3/2 3/3 2/1 2/1 1/3 3/3 1/3 1/3 3/3 2/1 2/2 2/1 3/2 3/3 3/1 1/3 -/3/2 2/1 3/2

Trade Name

Common Name

Aim 1.9EW Belt Callisto Casoron 1.4CS Casoron 4G Chateau WDG Devrinol 50DF Evital 5G Formula 40 Fusilade DX Gallery 75DF Goal 2XL *Gramoxone Inteon Karmex 80DF *Kerb 50WP Matrix FNV Poast Princep 90WDG Princep 4L Prowl 3.3EC Rely 200 Roundup Roundup Ultra Select 2EC Sinbar 80WP Solicam 80DF Spartan 4F Starane Ultra Surflan AS Stinger Touchdown 6F Treevix Ultra Blazer Velpar L Weedar 64

carfentrazone flubendiamide mesotrione dichlobenil dichlobenil flumioxazin napropamide norflurazon 2,4-D fluazifop-P isoxaben oxyfluorfen paraquat diuron pronamide rimsulfuron sethoxydim simazine simazine pendimethalin glufosinate glyphosate glyphosate clethodim terbacil norflurazon sulfentrazone fluroxypyr oryzalin clopyralid glyphosate saflufenacil acifluorfen hexazinone 2,4-D

*=Restricted use pesticide. 1 REI=Restricted entry interval. SL=See label. Some REIs vary by crop, always check the label. 2 1=high, 2=intermediate, 3=low. These leaching/runoff potential ratings are from the USDA-Natural Resources Conservation Service WIN-PST Pesticide Properties database: www.wsi.nrcs.usda.gov/products/ W2Q/pest/pest_mgt.html. 3 Chemical group and Fungicide Resistance Action Committee codes taken from www.hracglobal.com.

69

70
INSECTICIDES/MITICIDES
Manufacturer Chemtura Syngenta Bayer CropScience Syngenta DuPont Amvac Makhteshim-Agan DuPont Nippon Soda DuPont Gowan Arysta LifeScience Bayer CropScience FMC Bayer CropScience Valent FMC Bayer CropScience FMC Loveland Drexel Nichino Arysta LifeScience DowAgrosciences Valent Dow AgroSciences Certis Loveland Makhteshim-Agan DowAgrosciences Bayer CropScience Valent MGK DowAgrosciences Makhteshim-Agan Bayer CropScience Gowan DowAgrosciences Certis Arysta LifeScience DuPont DuPont Bayer CropScience 62719-498 66222-162 264-733 10163-169 62719-442 70051-66 66330-38 352-342 352-384 264-770 1021-1770 12 hrs 4 hrs 7-15 days 7-15 days 2-14 days 4 hrs 4 hrs 12 hrs 2-7 days 2-7 days 12 hrs 2/3 3/3 2/3 2/3 3/3 2/1 1/3 2/3 3/1 3/1 2/1 >3129 >5000 12.3-24.7 12.3-24.7 258-275 >5000 >5100 >5000 30-34 49-89 200 >5000 >5000 >2000 >2000 >4.64 >2000 >5000 >2000 >2000 >2000 >5000 pyrethroid - 3A spinosyn - 5 organophosphate - 1B organophosphate - 1B organophosphate - 1B diacylhydrazine - 18 disruptors of insect midgut membranes - 11 electron transport inhibitors - 20B carbamate - 1A carbamate - 1A pyrethroid & neonicotinoid - 3 & 4A 400-503 100-938 264-758 100-898 352-730 5481-502 66222-47 352-515 8033-23 352-597 71908-1-10163 264-1007-66330 264-745 71512-10-279 264-1025 73049-54 279-3108 264-806 279-3069 34704-447 19713-50 71711-15 66330-40 62719-420 59639-35 62719-541 70051-69 66222-103-34704 66222-10 62719-282 264-831 59639-115 12 hrs - 5 days 12 hrs 12 hrs 12 hrs 4 hrs 12 hrs 12 hrs 12 hrs 12 hrs 12 hrs 4 hrs 12 hrs 12 hrs 12 hrs 12 hrs 4 hrs 12 hrs 12 hrs 12 hrs 12 hrs 12 hrs 12 hrs 12 hrs 4 hrs 24 hrs 4 hrs 4 hrs 3-5 days 3-5 days 4 hrs 12 hrs - 6 days 12 hrs 2/3 2/1 2/1 2/3 -/2/3 1/3 2/3 3/2 1/3 2/1 1/3 2/3 3/3 -/1/3 2/3 2/3 2/3 3/3 3/3 2/3 2/1 2/1 2/3 -/1/3 1/3 1/3 3/3 2/3 2/3 >5000 >5000 4143-4870 300 >5000 >5000 >5000 458 1064 687-1867 >5000 416-445 826-1015 >2000 >2000 >5000 335 300-500 262 699 281 >5000 3900-4700 >5000 66 >5000 >5000 1600 1960 >5000 >2000 >5000 >5000 >2000 >2000 >1800 >5000 >2000 >2400 >2000 >2000 >5000 >2000 >2000 >2000 >2000 >4000 >2500 >2000 >4000 >2000 >4000 >2000 >2000 >5000 >5000 >2000 >5000 >2020 >2020 >2000 >4000 >5000 EPA Reg # REI1 Runoff/ Leaching Potentials2 Oral LD50 Dermal LD50 Chem Group & IRAC code3 unknown - UN neonicotinoid - 4A neonicotinoid - 4A avermectin - 6 diamide - 28 pyrethroid -3A growth inhibitor - 10A pyrethroid - 3A neonicotinoid - 4A Channel blocker - 22A unknown - UN pyrethroid - 3A pyrethroid - 3A feeding blocker - 9C diamide - 28 disruptors of insect midgut membranes - 11 pyrethroid - 3A neonicotinoid - 4A pyrethroid - 3A carbamate -1A carbamate -1A chitin biosysthesis inhibitor - 16 neonicotinoids - 4A diacylhydrazine - 18 pyrethroid -3A spinosyn - 5 disruptors of insect midgut membranes - 11 organophosphate - 1B organophosphate - 1B spinosyn - 5 tetronic & tetramic acid derivative - 23 juvenile hormone mimic - 7C

Record Keeping Requirements for Production Chemicals

Trade Name

Common Name

Acramite 50WS Actara 25WG Admire *Agri-Mek 0.15 EC Altacor 35WG *Ambush 25 WP Apollo SC *Asana XL Assail 30SG Avaunt 30WG Aza-Direct *Battalion 0.2 EC *Baythroid *Beleaf 50SG Belt 45C Biobit HPWP *Brigade WSB Calypso *Capture Carbaryl 4 L Carbaryl 80 Centaur 70 WSB Clutch 50 WDG Confirm 2F *Danitol 2.4 EC Delegate 25WG Deliver *Diazinon AG 600 *Diazinon 50 W Entrust Envidor 2 SC Esteem 35 WP

Evergreen

GF-120 NF *Guthion Solupak *GuthionSolupak50WP Imidan 70 WP Intrepid 2F Javelin WG Kanemite 15 SC *Lannate 90 SP *Lannate 2.4 LV *Leverage 2.7F

bifenazate thiamethoxam imidacloprid avermectin B1 chlorantraniliprole permethrin clofentezine esfenvalerate acetamiprid indoxacarb azadirachtin deltamethrin cyfluthrin pyridinecarboxamide flubendiamide Bt var kurstaki bifenthrin thiocloprid bifenthrin carbaryl carbaryl buprofezin clothianidin tebufenozide fenpropathrin spinetoram Bt kurstaki diazinon diazinon spinosad spirodiclofen pyriproxyfen pyrethrin + piperonyl butoxide spinosad azinphos-methyl azinphos-methyl phosmet methoxyfenozide Bt kurstaki acequinocyl methomyl methomyl cyfluthrin + imidacloprid

Record Keeping Requirements for Production Chemicals — INSECTICIDES (continued)
Dow AgroSciences DowAgrosciences DowAgrosciences Gowan Loveland Dow AgroSciences Bayer Bayer CropScience Certis BASF Bayer CropScience Syngenta Nichino Agriliance Bayer CropScience Loveland MGK Chemtura Gowan Bayer CropScience Bayer CropScience Bayer CropScience DowAgrosciences Miller Sunoco Gowan TKI Makhteshim-Agan Makhteshim-Agan United Phosphorus Valent Syngenta DuPont Syngenta Valent 10163-244 61842-18 66222-63 66222-62 70506-211 59639-135 100-1319 352-372 100-1112 59639-138 3 days 4 hrs 24 hrs 24 hrs 48 hrs 12 hrs 12 hrs 48 hrs 24 hrs 12 hrs 862-23 4 hrs -/3/3 2/3 1/3 1/3 1/3 2/1 2/1 3/3 2/3 2/3 >15000 53 >5000 45 41 >5000 >5000 >5000 9-10 351 >5000 >2020 256 >2000 >2000 >5000 >5000 >5000 >2000 >5000 organophosphate - 1B cyclodiene organochlorine - 2A cyclodiene organochlorine - 2A organotin miticide - 12B neonicotinoid - 4A neonicotinoid - 4A & 28 carbamate - 1A pyrethroid - 3A mite growth inhibitor - 10A 62719-221 62719-220 62719-301 10163-21 34704-108 62719-515 264-1050 264-1050 70051-9 7969-106 264-719 100-939 71711-19 279-3014-1381 264-763 74921-3-34704 1021-1771 66222-35-400 10163-250 264-316 264-333 264-349 62719-294 66196-3-72 NA 1-4 days 1-4 days 12-24 hrs 12 hrs 12 hrs 24 hrs 24 hrs 12 hrs 12 hrs 12 hrs 12 hrs 12 hrs 12 hrs 12 hrs 24 hrs 12 hrs 12 hrs 12 hrs 12 hrs 12 hrs 12 hrs 4 hrs 48 hrs 2/3 2/3 2/3 3/3 3/3 -/-/-/2/1 1/3 2/3 2/1 1/3 2/3 2/1 1/3 2/3 1/3 2/3 3/3 3/3 3/3 3/3 -/382 300-776 >500 5400-5700 550 >5000 >2000 >2000 >5000 1930 >2000 >5000 810-1004 1030 4143-4870 >2500 3914-5000 >5000 203-406 699 590 >5000 820 >2000 >5000 >5000 >2000 >2000 >2000 4000 >4000 >2000 >4000 >2000 >5000 >2000 >2000 >5000 8000 >5000 >5000 >4000 >2000 >5000 >2000 organophosphate -1B organophosphate - 1B organophosphate -1B organophosphate -1B organophosphate - 1B 23 tetronic acid derivative - 23 unknown - UN METI acaricide - 21A tetronic acid derivative - 23 neonicotinoid - 4A METI acaricide - 21A pyrethroid - 3A neonicotinoid - 4A pyrethroid - 3A pyrethroid - 3A benzoylurea - 15 mite growth inhibitor - 10A carbamate - 1A carbamate - 1A carbamate - 1A spinosyn - 5 -

chlorpyrifos chlorpyrifos chlorpyrifos malathion malathion fatty acids spirotetramat spirotetramat azadirachtin pyridaben spiromesifen thiamethoxam fenpyroximate permethiin imidacloprid gamma-cyhalothrin pyrethrins novaluron hexythiazox carbaryl carbaryl carbaryl spinosad calcium polysulfide

*=Restricted use pesticide. 1 REI=Restricted entry interval. SL=See label. Some REIs vary by crop, always check the label. 2 1=high, 2=intermediate, 3=low. These leaching/runoff potential ratings are from the USDA-Natural Resources Conservation Service WIN-PST Pesticide Properties database: www.wsi.nrcs.usda.gov/products/W2Q/pest/ pest_mgt.html. 3 Chemical group and Insecticide Resistance Action Committee codes taken from www.irac-online.org/eClassification.

*Lorsban 50W WSP *Lorsban 4 EC Lorsban 75WG Malathion 8 Flowable Malathion 57EC M-Pede Movento Movento 2F Neemix 4.5 Nexter Oberon Platinum Portal 5 EC *Pounce 3.2 EC Provado *Proaxis 0.5 CS Pyganic Rimon Savey 50DF Sevin 80S Sevin XLR Plus Sevin 4F Spintor 2SC Sulforix Sunspray Ultra Fine Spray Oil *Supracide 25 WP Surround WP * Thionex *Thionex 50W *Vendex 50 WP *Venom Voliam Flexi 40WDG *Vydate L *Warrior Zeal

superior oil

methidathion kaolin endosulfan endosulfan fenbutatin-oxide dinotefuran thiamethoxam + pyrazole oxamyl lambda-cyhalothrin etoxazole

71

72
PLANT GROWTH REGULATORS
Manufacturer Class cytokinin+gibberellin unclassified auxin Valent BASF 5481-426 48 hrs 3/2 >5000 >5000 >5000 >2000 2/2 >5050 >10000 >5000 48 hrs 3/3 >7000 2/3 >5000 >2000 264-267 12 hrs 2/2 5585 48 hrs 3/2 >10000 >5000 Amvac 5481-427 12 hrs 2/3 7969-188 12 hrs 3/2 >5000 >2000 73049-29 12 hrs 2/2 >3000 >2000 EPA Registration # REI1 Oral LD50 Dermal LD50 Runoff /Leach Potential2 Bayer CropScience 73049-407 4 hrs 3/3 Amvac 73049-15 12 hrs ethylene releaser auxin cytokinin Valent 73049-41 12 hrs Valent 73049-45 Valent 5481-429-54705 Valent >5050 gibberellin >5000 cytokinin+gibberellin >5000 ethylene inhibitor auxin Lawn & Garden

Trade Name

Common Name

Accel

Apogee

6BA + GA4+7

Amid-Thin-W

prohexadione-Ca

Ethrel

NAD

Fruitone N

ethephon

MaxCel

NAD

Pro-Gibb

6-benzyladenine

Promalin

gibberellic acid (GA3)

ReTain

6BA+GA4+7

*=Restricted use pesticide. 1 REI=Restricted entry interval. SL=See label. Some REIs vary by crop, always check the label. 2 1=high, 2=intermediate, 3=low. These leaching/runoff potential ratings are from the USDA-Natural Resources Conservation Service WIN-PST Pesticide Properties database: www.wsi.nrcs.usda.gov/products/W2Q/pest/ pest_mgt.html.

Sucker Stopper

AVG

NAD

NEMATICIDES
Manufacturer Dow Agrosciences Dow Agrosciences DuPont Amvac 352-372 5481-468 62719-12 5 days 48 hrs 48 hrs 62719-32 5 days EPA Reg # REI1 Runoff/ Leaching Potentials2 3/2 3/2 3/3 3/2 Oral LD50 224-713 304-519 9-10 812 Dermal LD50 333-504 200-500 >5000 >2020 Chem Group unclassified unclassified carbamate - 1A unclassified

Trade Name

Common Name

*Telone II

dichlorpropene

*Telone C-17

*Vydate L

Vapam HL

oxamyl

metam-sodium

dichlorpropene + chloropicrin

*=Restricted use pesticide. 1 REI=Restricted entry interval. SL=See label. Some REIs vary by crop, always check the label. 2 1=high, 2=intermediate, 3=low. These leaching/runoff potential ratings are from the USDA-Natural Resources Conservation Service WIN-PST Pesticide Properties database: www.wsi.nrcs.usda.gov/products/W2Q/pest/ pest_mgt.html.

Suggested record keeping form for restricted-use pesticides.

Farm name and address: _____________________________________

Date & State of Growth

Crop

Chemical Applied (trade name, Rate per formulation and EPA Acre registration number)

Total Applied

Location & Target Size of Block Pest(s)

Name of Applicator & Certification Number

Wind, Weather, Notes

73

74
Total Applied Location & Target Size of Block Pest(s) Name of Applicator & Certification Number Wind, Weather, Notes

Suggested record keeping form for restricted-use pesticides.

Farm name and address: _____________________________________

Date & State of Growth

Crop

Chemical Applied (trade name, Rate per formulation and EPA Acre registration number)

Conversion Factors for Weights and Measures: Equivalents
Length Metric 1 Millimeter 1 Centimeter (10 mm) 1 Meter (100 cm) 1 Kilometer (1,000 m) 1 Square Centimeter 1 Square Meter 1 Hectare (10,000 sq m) 1 Square Kilometer (100 ha) 1 Gram 1 Kilogram (1,000 g) 1 Ton (metric) — 1,000 kg 1 Milliliter 1 Liter (1,000 ml) 1 Cubic Meter (1,000 l) U.S. 1 Inch 1 Foot (12 in) 1 Yard (3 ft) 1 Mile (5,280 ft) 1 Square Inch 1 Square Foot (1.44 sq in) 1 Square Yard (9 sq ft) 1 Acre (43,560 sq ft) 1 Square Mile (640 acres) 1 Ounce 1 Pound (16 oz.) 1 Ton (U.S.) — 2,000 lb 1 Tablespoon (3 teaspoons) 1 Fluid ounce (2 tablespoons) 1 Cup (8 fl oz) 1 Pint (2 cups) 1 Quart (4 cups) 1 Gallon (U.S.) — 4 qts 1 Cubic Foot U.S. 0.039 inch 0.39 inch 39.4 inch 0.62 mile 0.155 square inch 1.2 square yards 2.47 acres 247 acres 0.035 ounces 2.2 pounds 1.1 tons (U.S.) 0.034 fluid ounces 1.056 quarts 264.17 gallons (U.S.) Metric 2.54 centimeters 30.5 centimeters 0.91 meters 1.6 kilometers 6.5 square centimeters 930 square centimeters 0.84 square meters 0.405 hectares 259 hectares 28.3 grams 0.454 kilograms 0.907 tons (metric) 14.79 milliliters 29.6 milliliters 0.237 liters 0.473 liters 0.946 liters 3.8 liters 28.3 liters

Area

Weight Volume

Length

Area

Weight

Volume

Metric Abbreviations: mm=millimeter; cm=centimeter; m=meter; km=kilometer; ha=hectare; mg=milligram; g=gram; kg=kilogram; ml=milliliter; l=liter.

75

Midwest Small Fruit & Grape Spray Guide 2011
This publication is one of a series of publications for fruit growers in the Midwest developed by the Midwest Fruit Workers Group. Other publications include the Midwest Small Fruit Pest Management Handbook, Midwest Commercial Tree Fruit Spray Guide, and Midwest Tree Fruit Pest Management Handbook. Contact your local Cooperative Extension office for information on these publications.

Editors
Bruce Bordelon, Purdue University; Mike Ellis and Celeste Welty, Ohio State University

Contributors
University of Illinois Horticulture: Mosbah Kushad, Elizabeth Wahle, Maurice Ogutu Entomology: Rick Weinzierl Plant Pathology: Mohammad Babadoost Weed Science: John Masiunas Iowa State University Horticulture: Paul Domoto Entomology: Donald Lewis Plant Pathology: Mark Gleason, Laura C.H. Jesse Kansas State University Horticulture: Ted Carey Entomology: Raymond Cloyd Plant Pathology: Megan Kennelly University of Kentucky Horticulture: John Strang, Shawn Wright Entomology: Ric Bessin Plant Pathology: John Hartman University of Missouri Horticulture: Michelle Warmund Entomology: Bruce Barrett Viticulture: Keith Striegler, Andy Allen Missouri State University Horticulture: John Avery, Martin Kaps Plant Pathology: Laszlo Kovacs Integrated Pest Management: Marciej Pszczolkowski University of Nebraska — Lincoln Horticulture: Paul Read Entomology: Fred Baxendale Plant Pathology: Amy Timmerman Weed Science: Lowell Sandell Ohio State University Horticulture: Imed Dami Weed Science: Doug Doohan Entomology: Celeste Welty, Roger Williams Plant Pathology: Mike Ellis Oklahoma State University Horticulture: Eric Stafne Entomology: Eric Rebek Plant Pathology: Damon Smith Purdue University Horticulture: Bruce Bordelon Entomology: Rick Foster Plant Pathology: Janna Beckerman Weed Science: Steve Weller West Virginia University Horticulture: John Jett Plant Pathology: John Baniecki University of Wisconsin Horticulture: Rebecca Harbut, Brian Smith Plant Pathology: Patricia McManus, Stephen Jordan Weed Science: Jed Colquhoun

Disclaimer
References to products in this publication are not intended to be an endorsement to the exclusion of others that may be similar. Any person using products listed in this publication assumes full responsibility for their use in accordance with current directions of the manufacturer.

Non-Discrimination Statement
The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual’s income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA’s TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer.

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