Structural Pest Control Applicator Practice Exam

Weather-wise applications can help save money by reducing pesticide lost through which two factors?

1. Drift and run-off

2. Dispersion and condensation

3. Condensation and evaporation

4. Evaporation and absorption

The correct answer is: Drift and run-off

Weather-wise applications target specific environmental factors that can significantly influence the effectiveness and economic efficiency of pesticide use. The correct answer identifies drift and run-off as critical factors. Drift refers to the unintended movement of pesticide spray droplets away from the target area, often caused by wind, which can lead to ineffective applications and wastage of chemicals. By planning applications during calm weather conditions, applicators can minimize drift, ensuring that more pesticide reaches the intended area and reducing the overall amount needed. Run-off involves pesticides being washed away from the application site by rain or irrigation, which can lead to loss of effectiveness and potential environmental contamination. Applying pesticides when conditions are less likely to lead to run-off—such as avoiding heavy rainfall—can help ensure that more of the product remains where it is needed. By focusing on these two factors, weather-wise applications help enhance the efficiency of pesticide use, leading to cost savings and more responsible environmental stewardship.