What is a purpose of using buffer zones during pesticide application?

• A. To maximize drift.
• B. To minimize soil erosion and runoff.
• C. To increase evaporation.
• D. To reduce beneficial insects.

Answer: (B)

Buffer zones are vegetated strips placed around fields to intercept pesticide movement and protect water and soil. Their main purpose is to protect water bodies and soil by reducing erosion and trapping pesticides and sediments before they reach streams, ponds, or groundwater. This slows runoff, improves filtration during rain or irrigation, and helps maintain downstream water quality. They aren’t meant to maximize drift, increase evaporation, or harm beneficial insects; in fact, by reducing pesticide exposure, they help protect beneficial insects as well.