How should drift risk be assessed before spraying on a windy day?

• A. Check wind speed/direction, avoid spraying in high wind, apply drift-reduction measures, or postpone
• B. Spray as usual regardless of wind
• C. Ignore drift to save time
• D. Check wind speed/direction, avoid spraying in high wind, apply drift reduction measures, or postpone

Answer: (D)

Drift risk on a windy day hinges on actively evaluating the environment before spraying. The key step is to check wind speed and direction and compare them to safe spraying thresholds. If the wind is high or gusty, spraying can push droplets off target, so you should avoid spraying in those conditions or postpone until conditions improve. If you do spray, use drift-reduction practices—such as appropriate nozzle choice and pressure, maintaining an optimal boom height, and other drift-control methods—to minimize off-target movement. This combined approach—assessing wind, avoiding operation in high wind, applying drift-reduction measures, or postponing—is the soundest way to manage drift risk.