Name a method to minimize soil erosion and runoff during pesticide application.

• A. Use buffer zones, minimize soil disturbance, maintain ground cover, and avoid application on steep slopes or saturated soils; use drift control measures.
• B. Apply on steep slopes and during saturated soil conditions.
• C. Disturb soil less but without buffer zones.
• D. Use only high-volume nozzles regardless of conditions.

Answer: (A)

Minimizing soil erosion and runoff from pesticide application comes from combining practices that protect the soil surface and control where the chemical goes. Establishing buffer zones creates a vegetated area that catches and slows runoff, reducing off-target movement. Disturbing the soil less keeps it more stable and less prone to being washed away. Maintaining ground cover—whether residue, mulch, or living vegetation—protects the soil from rainfall impact and slows water flow, which lowers erosion and the transport of pesticides off the target area. Avoiding application on steep slopes or when soils are saturated reduces the tendency for water to run quickly downhill and push pesticides beyond the intended area. Drift control measures—such as appropriate nozzle selection, proper pressure and boom height, and drift-reducing technologies—help keep droplets on the target and minimize off-target movement.

Other approaches that ignore these protections—like spraying under risky conditions or using high-volume delivery without drift considerations—increase erosion, runoff, and off-target deposition, making them less effective for protecting soil and water.