Use field borders to catch runoff water around the treated areas. Such borders allow gradual movement of the water containing pesticides, giving bacteria and sunlight more time to degrade the chemicals. Use erosion and runoff controls. Close-growing crops such as grass or small grains are especially effective as cover strips to catch runoff and retain pesticides. Avoid wind drift by considering weather and equipment.
Large droplets are resistant to wind drift.
Chemigation should not be used when wind speed exceeds 5 mph. Gun-type sprinklers should not be used. They spray a fine mist high into the air which is more likely to be carried by the wind. Locate the irrigation equipment to cover the entire field but do not place the sprinklers close to the field edge. This reduces the likelihood of pesticide runoff or drift into non-target areas.