DuPont Authentication H - 65190 manual Chemigation Alfalfa

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CHEMIGATION

ALFALFA

Apply this product only through center pivot sprinkler irrigation systems. Do not apply this product through any other type of irrigation system.

Crop injury, lack of effectiveness, or illegal pesticide residues in the crop can result from nonuniform distribution of treated water.

Severe alfalfa injury may result following application after cutting if either the regrowth is more than 2” high or significant stubble is left after alfalfa cutting.

If you have questions about calibration, you should contact State Extension Service specialists, equipment manufac-

turers or other experts.

A person knowledgeable of the chemigation system and responsible for its operation, or under the supervision of the responsible person, shall shut the system down and make necessary adjustments should the need arise.

DORMANT APPLICATIONS

Select the appropriate rate (see Use Rates section) for soil texture and organic matter content using 0.25” to 0.75” of sprinkler irrigation as a continuous injection during the application. Best results are obtained when soil is moist at time of application, and when weeds have not germinated or are less than 2” tall or across.

APPLICATION AFTER CUTTING

Apply VELPAR® DF at 5.3 ounces per acre to stubble after cutting, following hay removal, and before regrowth exceeds 2” in height. Apply VELPAR® DF using 0.25” to 0.75” of sprinkler irrigation as a continuous injection during the application. Best results are obtained when soil is moist at time of application and when weeds have not germinated or are less than 2” tall or across.

NOTE: Making an application when daily temperatures are forecast to be in the mid-to-high 90 degree range within 3 to 5 days after treatment may increase the potential for crop injury.

SPRINKLER CHEMIGATION

The system must contain a functional check valve, vacuum relief valve, and low pressure drain appropriately located on the irrigation pipeline to prevent water source contamination from backflow.

The pesticide injection pipeline must contain a functional, automatic, quick-closing check valve to prevent the flow of fluid back toward the injection pump.

The pesticide injection pipeline must also contain a functional, normally closed, solenoid-operated valve located on the intake side of the injection pump and connected to the system interlock to prevent fluid from being withdrawn from the supply tank when the irrigation system is either automatically or manually shut down.

The system must contain functional interlocking controls to automatically shut off the pesticide injection pump when the water pump motor stops.

The irrigation line or water pump must include a functional pressure switch which will stop the water pump motor when the water pressure decreases to the point where pesticide distribution is adversely affected.

Systems must use a metering pump, such as a positive displacement injection pump (e.g., diaphragm pump) effectively designed and constructed of materials that are compatible with pesticides and capable of being fitted with a system interlock.

MIXING INSTRUCTIONS

1.Fill the supply tank 1/4 to 1/3 full of water.

2.While agitating, add the required amount of VELPAR® DF and continue agitation until the VELPAR® DF is fully dispersed, at least 5 minutes.

3.Once the VELPAR® DF is fully dispersed, maintain agitation and continue filling tank with water. VELPAR® DF should be thoroughly mixed with water before adding any other material.

4.As the tank is filling, add tank mix partners (if desired). Follow use precautions and directions on the tank mix partner label.

5After thorough mixing, the agitation system can be stopped to prevent excessive foaming in the tank. Once thoroughly mixed the solution in the supply tank does not require additional agitation unless specified on the

companion products label. If foaming occurs in the injection supply tank, a defoaming agent (defoamer) may be added.

6. Apply VELPAR® DF spray mixture within 48 hours of mixing to avoid product degradation.

USE PRECAUTIONS - CHEMIGATION

•Do not connect an irrigation system (including greenhouse systems) used for pesticide application to a public water system unless the pesticide label prescribed safety devices for public water systems are in place.

•Distributing treated water in an uneven manner can result in crop injury, lack of effectiveness, or over-tolerance pesticide residues in the crop. Therefore, to ensure that the mixture is applied evenly at the recommended rate, use sufficient water, apply the mixture for the proper length of time and ensure sprinkler produces a uniform water pattern.

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Contents DuPont Velpar DF Table of Contents First AID Precautionary Statements Hazards to Humans Domestic AnimalsUser Safety Recommendations Keep OUT of Reach of ChildrenEnvironmental Conditions and Biological Activity General InformationApplication Information Tank MixturesAgricultural Uses Agricultural USE Requirements Directions for USEAlfalfa Integrated Pest ManagementDormant Varieties USE RatesWeeds Controlled Spray EquipmentChemigation Alfalfa Flood Irrigated Alfalfa Replanting Following AlfalfaPosting of Areas to be Treated Application USE Precautions AlfalfaBlueberry High Bush BlueberriesHigh Bush Blueberries USE PrecautionsUSE Precautions LOW Bush BlueberriesEastern US Christmas TreesWestern US Pineapple USE Precautions Christmas TreesTreatments to field edges and roadsides Apply Sugarcane Eastern US and Lake States USE Precautions SugarcaneForestry Site PreparationHerbaceous Plants Plants ControlledWoody Plants Basal Soil Single Stem Treatments USE Precautions Site PreparationForestry Release Grid ApplicationSoil Description Lb/Acre Brush ControlledEastern US Velpar DF Crop Species Soil Description Established TreesBasal Soil Single Stem Treatment USE Precautions Release Grid & Single StemRelease Herbaceous Weed Control Forestry Impregnation on DRY Bulk Fertilizer USE Precautions Impregnated Fertilizer for ForestryYellow Poplar Plantings USE Precautions ForestryUSE Precautions Yellow Poplar Plantings Pasture / RangelandSpray Equipment USE Precautions PasturePasture / Rangeland Brush Control Weeds Controlled USE RatesNON-AGRICULTURAL USE Requirements USE Precautions Pasture / RangelandNON-AGRICULTURAL Uses Noncrop Industrial Sites10 2/3 Lb/Acre Specific Weed ProblemsApplication Timing 3 6 2/3 Lb/Acre3 to 10 2/3 Lb/Acre USE Precautions Industrial Unimproved TurfNON-CROP Brush Control BroadcastAdditional USE Information USE Precautions NON-CROPSpray Drift Management Shielded Sprayers Spray Tank Clean OUTSurface Temperature Inversions Storage and DisposalSL 1066 041706

H - 65190 specifications

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