What is pesticide drift?

• A. Movement of spray particles by air to unintended areas.
• B. The process of labeling pesticides.
• C. The application rate measurement.
• D. A type of application equipment.

Answer: (A)

Drift is the movement of spray particles by air to unintended areas. When you apply pesticides, droplets or dust can be carried by wind, air currents, or temperature-driven air movement away from the target site, reaching nearby crops, ornamentals, water, wildlife, or people. This off-target movement can cause damage or exposure even though you aimed elsewhere. Factors that affect drift include how big or small the droplets are, the type of nozzle, spray pressure, boom height, and weather conditions like wind speed and temperature inversions. To reduce drift, use strategies such as applying under appropriate wind conditions, choosing nozzle types and droplet sizes that minimize drift, calibrating the sprayer, keeping the spray height appropriate, and establishing buffer zones near sensitive areas. Remember, drift concerns why labels specify conditions and practices to follow, including proximity to non-target sites, so following those guidelines helps protect people and the environment.