What is spray drift, and name at least two measures to reduce drift.

• A. Drift is the movement of droplets toward the target; use high pressure to reduce it.
• B. Drift is the movement of droplets away from the target; use drift-reducing nozzles and appropriate boom height and weather conditions per label.
• C. Drift is a beneficial distribution of spray; larger droplets reduce drift.
• D. Drift occurs only at night; avoid applying at night to prevent drift.

Answer: (B)

Spray drift is the unintentional movement of spray droplets away from the target because of wind and air currents, leading to off-target deposition and potential harm to nearby crops, water, or people. To reduce drift, two effective measures are using drift-reducing nozzles and keeping the boom height and weather conditions within what the label specifies. Drift-reducing nozzles are designed to produce larger droplets or to mix air with the spray, making droplets heavier and less likely to be carried by wind. Keeping the boom at an appropriate height helps minimize the time droplets spend in the air and reduces drift, and following the label ensures you apply under conditions that limit drift, such as suitable wind speeds and avoidance of problematic atmospheric conditions.