Which nozzle situation minimizes the potential for pesticide drift?

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Prepare for the Iowa DOA CORE Pesticide Applicator's License Test. Study with flashcards, multiple choice questions, and detailed explanations. Get ready for your exam!

Multiple Choice

Which nozzle situation minimizes the potential for pesticide drift?

Explanation:
Drift is minimized when droplets are large and exit with less energy. A large nozzle orifice produces bigger droplets, and operating at low pressure reduces atomization and the spray’s exit velocity. Together, this yields heavier droplets that are less likely to be carried off-target by wind, so drift is reduced. In contrast, small orifices at high pressure create many fine droplets that stay airborne longer and can travel with the breeze, increasing drift.

Drift is minimized when droplets are large and exit with less energy. A large nozzle orifice produces bigger droplets, and operating at low pressure reduces atomization and the spray’s exit velocity. Together, this yields heavier droplets that are less likely to be carried off-target by wind, so drift is reduced. In contrast, small orifices at high pressure create many fine droplets that stay airborne longer and can travel with the breeze, increasing drift.

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