Iowa Commercial Applicator License Practice Test

The primary reason to avoid pesticide application during high winds is that high winds can increase spray drift. Spray drift occurs when pesticide particles are carried away from the intended area by wind, potentially leading to unintended exposure of non-target plants, animals, or humans. This drift can undermine the effectiveness of the pesticide on the intended target and may cause damage to surrounding ecosystems or agricultural operations.

In addition to regulatory concerns and potential harm to the environment or public health, spray drift can also result in the violation of label restrictions and laws related to pesticide application. Thus, managing environmental factors like wind is crucial for ensuring safe and effective pesticide use.