What is the primary purpose of buffer zones in pesticide applications?

• A. Reduce drift and protect sensitive areas
• B. Increase pesticide efficacy
• C. Speed runoff
• D. Eliminate all residues

Answer: (A)

Buffer zones are protective barriers placed between the treated area and nearby sensitive sites. The main purpose is to minimize pesticide drift and shield people, wildlife, and water from unintended exposure. By establishing a safe distance, smaller droplets and off-target movement are less likely to reach areas like homes, schools, waterways, or habitats, which helps prevent harm and meet label requirements. In practice, buffer zones work with other drift-control practices—such as choosing appropriate nozzle types and droplet sizes, spraying at proper heights, and applying only under label-approved wind and weather conditions—to maximize safety. They do not aim to boost how well the pesticide works, they don’t speed up runoff, and they can’t guarantee that every trace of residue is gone.