What does the term “drift” refer to in aerial application?

The term "drift" in aerial application specifically refers to the unintended movement of pesticides away from the target area during spraying. This phenomenon occurs when fine droplets or particles are carried away by wind or other environmental factors after they have been released from the aircraft. Understanding drift is essential for aerial applicators because it can lead to improper pesticide application, reduce effectiveness, and potentially harm non-target organisms or areas.

In this context, recognizing factors that contribute to drift is critical for maintaining safety and environmental stewardship when conducting aerial applications. Being aware of drift helps applicators make informed decisions regarding the timing of applications, the choice of equipment, and weather conditions to minimize the likelihood of pesticide movement beyond intended areas.