What is drift and why is it a concern in Kentucky pesticide regulations?

• A. Drift is a beneficial effect.
• B. Drift is the movement of pesticide away from the target area; it can harm non-target plants, animals, and water sources, so drift mitigation is required.
• C. Drift refers to pesticide volatility only in winter.
• D. Drift is a concern for soil erosion.

Answer: (B)

Drift is the movement of pesticide off the intended target area through the air, often as small droplets or vapors, carried by wind and influenced by factors like droplet size, application method, temperature, and humidity. In Kentucky pesticide regulations, drift is a major concern because off-target movement can harm nearby non-target crops, wildlife, pollinators, and water sources. That’s why regulations emphasize drift mitigation: using appropriate droplet sizes and nozzle types, calibrating equipment, applying under suitable weather (avoiding high winds and temperature inversions), controlling boom height, and maintaining required buffer zones around water bodies and sensitive areas. Following these practices helps protect the environment and ensures products are used safely and in accordance with label directions.