Turf Pest Management Category 3B Practice Test

Drift control comes from how you apply, not just which nozzle you pick. The best practical step beyond nozzle choice is to tailor the application to the environment and use proper technique: spray under appropriate wind conditions and keep the spray boom height and travel speed within recommended ranges. Moderate, steady wind helps carry droplets onto the target rather than letting them blow far off-target, while a correct boom height ensures droplets are deposited where intended and aren’t carried away by air currents. A suitable travel speed also matters so droplets reach the leaf surface efficiently and deposit rather than drift away.

Choosing high pressure in calm air tends to produce smaller, more easily drifted droplets, and using very fine droplets regardless of wind increases off-target movement. Increasing speed without considering wind can also worsen drift and deposition accuracy.