Which statement about spray drift is accurate?

• A. Drift only occurs as larger droplets
• B. Drift can involve both droplets and vapor
• C. Drift is not a concern in pesticide application
• D. Drift only occurs with misting systems

Answer: (B)

Spray drift is the unintentional movement of pesticide away from the target area. It can happen in two forms: droplets carried by the wind and vapor that forms when a volatile chemical evaporates and moves with air currents. That makes the statement about drift involving both droplets and vapor the correct one. Drift isn’t limited to large droplets, nor is it restricted to misting systems, and it is indeed a concern in pesticide application. Understanding this helps explain why both droplet size and chemical volatility matter when planning and executing applications.