Which sign might indicate an adverse effect of an aerial application on the surrounding area?

The identification of signs of pesticide exposure in adjacent vegetation is crucial for understanding the impact of aerial applications on the surrounding environment. When pesticides are applied, there can be unintended effects on nearby plants. Indications of pesticide exposure typically include discoloration, wilting, stunted growth, or abnormal leaf development, which can serve as clear evidence that the application has negatively affected surrounding flora.

This understanding is important not just for assessing the immediate impact of the application, but also for ensuring compliance with pesticide regulations and best practices. Healthy and vibrant growth or increased animal activity might not directly correlate with adverse effects, as they can occur in the absence of harm. Rainfall after application might actually help in dispersing pesticides and reducing concentration, rather than indicating any adverse effects. Observing the health of adjacent vegetation provides a more direct assessment of the aerial application's impact on the ecosystem.