Structural Pest Control Applicator Practice Exam

Which of the following factors does not influence pesticide drift?

1. Particle size.

2. Pollution.

3. Nozzle design and orientation.

4. Temperature.

The correct answer is: Pollution.

Pesticide drift refers to the movement of pesticide particles or droplets away from the target area during or after application. Understanding the factors that influence this drift is essential for effective pest control and minimizing environmental impact. The choice that does not influence pesticide drift is pollution. While pollution can affect air quality and potentially impact the environment and health, it does not directly affect how pesticides drift during application. The physical characteristics of the pesticide, the method of application, and environmental conditions are what primarily determine drift behavior. In contrast, particle size significantly impacts drift; smaller particles are more susceptible to being carried away by wind. Similarly, nozzle design and orientation can affect the size and distribution of droplets, directly influencing how far and in which direction pesticides travel. Temperature can alter the behavior of pesticides, such as evaporating spray solutions or affecting wind conditions, further contributing to drift potential. Understanding these factors is crucial for proper pesticide application and reducing unintended impact on non-target areas.