Which of the following is NOT a major drift consideration?

• A. Pest identification
• B. Wind speed and direction
• C. Pesticide particle size
• D. Application timing

Answer: (A)

Drift is the movement of spray droplets away from the target area. To minimize drift, you look at factors that affect how droplets travel: wind speed and direction determine where spray may blow; pesticide particle size matters because finer droplets stay airborne longer and travel farther than larger ones; and application timing matters since weather conditions like temperature inversions, humidity, and overall windiness influence droplet behavior after application. Pest identification, while essential for choosing the right product and ensuring effective pest control, doesn’t describe how the spray moves through the air, so it’s not a major drift consideration.