Crop and Pest Management Guidelines

A Cornell Cooperative Extension Publication
34198

7.8 Management Strategies to Reduce Drift

Before spraying:

  1. Train the operator to use the sprayer correctly on your farm under your conditions.
  2. Plan the spraying operation; consider the use of vineyard field work-cards, outlining the amount to be mixed/sprayed per block as a good management tool.
  3. Read and follow the pesticide label.
  4. Select the correct nozzle for the target. Adjust the size, position and orientation of the nozzles to achieve correct distribution within the canopy, particularly as the growing season progresses.
  5. Consider the use of sprayers which direct the spray to the target such as towers and tunnels. Check that air deflectors are set properly to confine disturbance to the target. Follow the guidelines in this handout.
  6. Consider spray additives to reduce drift only if they are independently proven to work.
  7. Improve spraying logistics to ensure adequate time to spray within 'ideal' conditions.
  8. Only spray when weather conditions are ideal; avoid spraying on days when conditions are favorable for atmospheric inversion or wind drift.
  9. Calibrate the sprayer with water to ensure that everything is working correctly.
  10. Start planting windbreaks!

3420034201

GERMAN DRIFT REDUCTION METHODS -Registration of BBA - approved plant protection equipment for vineyards in the list of loss reducing equipment. The information in the table below has been adapted from the BBA list.

34199
Drift Reduction Class
Sprayer
Nozzle Types
Regulations of Use
34202

50%

All air assisted sprayers

TDJ, AVI, DG, AD
Various Sizes

75%

All air assisted sprayers

TDJ, AVI, DG, AD
Various Sizes

First row without spraying toward field edge.

Tower sprayer

TDJ, AVI, DG, AD
Various Sizes

First row without spraying toward field edge.

90%

All air assisted sprayers

AVI, ID, DG
Specific Sizes

First row without spraying toward field edge.

Tower sprayers

AVI, ID, DG
Specific Sizes

First row without spraying toward field edge.

Lipco Tunnel sprayers

99%

Lipco Tunnel sprayers

ID, TDJ, AVI, DG, AD
Various Sizes

 Key: ID = Lechler Air Induction; AD = Lechler Drift Reducing; TD = Agrotop by GreenLeaf; DG = Drift Guard by TeeJet; AVI = Albuz Air Induction

 Website: www.bba.de

During spraying:

  1. Stay alert: ensure the spray is not allowed to drift on to non-target areas and watch for changes in wind speed and direction.
  2. Keep spray pressure as low as possible and ensure an accurate gauge is used.
  3. Maintain a constant speed and pressure, if an automatic regulator is fitted, remember, small increases in speed result in large increases in pressure. The delivered air and spray must be given time to penetrate the canopy.
  4. Avoid spraying near sensitive crops or water courses; use a 50 -100 feet buffer zone Spray inwards, with one side of the sprayer, for at least 50 feet from the boundary to create a 'headland'.

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