What is the major concern of drift?

• A. Off target damage to crops
• B. Off target damage to vegetation and people
• C. Groundwater contamination
• D. Air quality issues

Answer: (B)

Drift happens when pesticide spray moves away from the target area in air as fine droplets or particles, often driven by wind, spray pressure, nozzle size, and environmental conditions like temperature and humidity. The main worry is off-target damage to vegetation and people because those are the unintended recipients of the spray: nearby crops and ornamentals can be harmed, and bystanders or workers can be exposed to residues. To minimize drift, use appropriate droplet sizes, set up adequate buffer zones, choose favorable weather conditions, and avoid applications when winds are gusty or conditions promote evaporation and movement. Groundwater contamination and air quality issues can occur in broader contexts, but the immediate and most direct risk from drift is damage to non-target vegetation and human exposure, which is why this choice best captures the major concern.