Which drift type is described as the primary focus in drift control?

• A. Vapor Drift
• B. Particle Drift
• C. Drift
• D. Non-Target Drift

Answer: (B)

Particle drift is the movement of spray droplets through the air to areas you don’t intend to treat. It’s the primary drift concern because droplets, not vapors, carry most off-target deposition during application, and these droplets are directly affected by how you apply the product. Controlling it comes down to the basics of droplet size and application technique: using drift-reducing nozzles, aiming for a coarser droplet spectrum when possible, adjusting spray pressure, and keeping the boom height and spacing appropriate so droplets don’t travel far from the target. While vapor drift from volatile pesticides and the broader idea of drift to non-target areas matter, the most immediate and controllable factor in drift management is the physical transport of droplets, making particle drift the main focus.