What weather conditions are likely to produce particle drift?

Hot and dry conditions are indeed likely to produce particle drift when applying pesticides. These weather conditions can create an environment where the particles from the pesticide spray are more susceptible to being carried away from the target area. High temperatures can increase the evaporation rate of the pesticides, creating finer particles that can easily become airborne. Additionally, dry conditions can reduce the surface tension of the droplets, which may contribute to more aerosolized particles drifting away due to wind.

The context of hot and dry conditions highlights the mechanics of how spray application interacts with environmental factors. When applying pesticides in such conditions, there is a greater risk of non-target exposure and reduced efficacy of the treatment. Consequently, understanding these dynamics can aid pesticide applicators in making informed decisions about timing and methods of application to minimize drift risk and maximize effectiveness.