What should you do if weather suddenly changes and wind speed increases during an application?

• A. Stop or suspend application and wait for favorable conditions; resume only when label conditions are met.
• B. Continue applying to finish quickly.
• C. Increase spray rate.
• D. Move to a different wind direction.

Answer: (A)

Wind conditions are a key factor in preventing drift during aquatic pesticide applications. If weather suddenly changes and wind speed increases, droplets can travel farther than intended and reach water bodies or non-target organisms. The safest and most responsible action is to stop or suspend the application and wait until conditions meet the label’s allowed range, then resume only when those conditions are satisfied. Continuing the application, increasing the spray rate, or trying to shift direction without meeting the label’s wind conditions can dramatically raise drift risk and potentially violate label requirements and environmental protections.