What weather factors reduce drift?

The correct choice highlights the conditions that minimize drift in pesticide application. When there is a lack of wind, it significantly reduces the potential for the spray particles to be carried away from the intended target area, thus ensuring the application is more effective and concentrated where it is needed.

Low temperatures can also contribute to reducing drift by slowing down the evaporation of the spray solution, allowing it to settle more effectively onto the target surfaces instead of vaporizing and drifting away. Lastly, high humidity plays a crucial role in reducing drift because it increases the moisture content in the air, which helps large droplets stay intact and reduces the aerosolization of smaller particles.

In combination, these weather factors create an ideal environment for pesticide application by maintaining effective coverage on the intended surfaces and limiting the potential for drift to non-target areas, ensuring both effectiveness and safety in pest control efforts.