Which practice is used to protect water quality when applying pesticides near water?

• A. Maintaining buffer zones between application areas and water bodies.
• B. Applying pesticide right at the water's edge.
• C. Relying on rainfall to wash off drift
• D. Fertilizing the adjacent area to stimulate plant growth

Answer: (A)

Buffer zones protect water quality by creating a safe distance between where you spray and any nearby water body. That strip of vegetation acts as a filter and physical barrier, helping to catch or slow down spray droplets and any runoff so pesticides don’t reach the water. It also gives time for the vegetation and soils to absorb or degrade some of the chemicals before they can enter aquatic ecosystems, reducing exposure for fish, amphibians, and other organisms. This practice addresses the main ways pesticides reach water: drift during application and runoff from rain or irrigation.

Spraying right at the water’s edge makes it easy for pesticides to enter the water immediately, which can harm aquatic life and contaminate drinking water sources. Relying on rainfall to wash off drift is unpredictable and can move contaminants into water unpredictably. Fertilizing the adjacent area to boost plant growth doesn’t tackle pesticide movement and can even increase nutrient runoff, potentially harming water quality.