What weather factors can reduce pesticide drift?

The correct option highlights that low wind and high humidity are effective weather factors in reducing pesticide drift. Low wind conditions minimize the potential for pesticides to be carried away from the target application area because there is less air movement to disperse the chemicals. This localized application increases the efficacy of the pesticide while minimizing the risk of exposure to non-target areas.

High humidity also plays a critical role in reducing drift. When humidity levels are high, the air is saturated with moisture, which can help to keep pesticide particles heavier and less likely to become airborne. This can lead to larger droplets that are more likely to settle quickly onto the target surface rather than evaporating or drifting away with wind currents.

In contrast, conditions such as high wind, low humidity, freezing temperatures, rain, or bright sunlight can lead to increased drift potential or reduced effectiveness of the pesticide application. High wind can easily carry pesticide droplets away from the target area, and low humidity can lead to quick evaporation of the product before it has a chance to reach the desired surface. Therefore, the combination of low wind and high humidity creates optimal conditions for safe and effective pesticide application.