What factor(s) increase drift when spraying with a boom sprayer?

What factor(s) increase drift when spraying with a boom sprayer?

• A. High pressure
• B. Small droplet size
• C. Driving quickly
• D. All of the above

Answer: (D)

Drift happens when spray droplets are carried away from the target by air movement and their own physical properties. Higher spray pressure tends to create finer droplets, and smaller droplets have less mass, so they’re more easily blown or carried by the wind. Driving quickly increases the boom’s movement and the air around it, which can push droplets off target and let them travel farther before depositing. When you combine these factors, drift risk rises, so all of them contribute to more drift. To reduce drift, use lower pressure for coarser droplets, select appropriate nozzles, and spray at slower speeds under suitable wind conditions.

Drift happens when spray droplets are carried away from the target by air movement and their own physical properties. Higher spray pressure tends to create finer droplets, and smaller droplets have less mass, so they’re more easily blown or carried by the wind. Driving quickly increases the boom’s movement and the air around it, which can push droplets off target and let them travel farther before depositing. When you combine these factors, drift risk rises, so all of them contribute to more drift. To reduce drift, use lower pressure for coarser droplets, select appropriate nozzles, and spray at slower speeds under suitable wind conditions.