What does a buffer refer to in pesticide application?

In the context of pesticide application, a buffer refers to a non-treated zone positioned between the target application area and sensitive areas, such as water bodies, habitats of endangered species, or residential zones. The purpose of this buffer zone is to prevent the drift of pesticides that could harm non-target organisms or contaminate sensitive environments. By ensuring that there is a designated area free from pesticide application, the risk of unintended exposure is significantly reduced. This practice is crucial for protecting ecological balance and public health, as it helps to mitigate the potential negative effects of pesticide use on vulnerable ecosystems and populations.