Which statement best describes drift and wind management in pesticide application?

• A. Maintain proper wind conditions to minimize drift; use drift-reducing nozzles and coarser droplets; lower nozzle pressure.
• B. Increase nozzle pressure for finer droplets.
• C. Apply in high wind with fast-moving equipment.
• D. Use long-range sprayers only.

Answer: (A)

Drift and wind management means shaping how the spray behaves in the air so most of it stays on the target. The best way to do this is to work under proper wind conditions—calm or very light, steady winds—so droplets aren’t blown off course. Using drift-reducing nozzles and aiming for coarser droplets helps a lot because larger droplets are less easily carried by air currents and tend to deposit where you intend. Lowering nozzle pressure also reduces drift since it produces larger droplets and less plume energy that can carry droplets far away. In contrast, fine droplets from high-pressure spraying are more prone to drift, and spraying in windy conditions or with faster-moving equipment increases off-target deposition. Long-range sprayers don’t address the drift issue as directly and aren’t needed here.