Texas Pesticide Applicator Practice Exam

Applying pesticides in certain weather can help save money by minimizing loss through which two factors?

1. Drift and evaporation

2. Drift and runoff

3. Rain and humidity

4. Humidity and temperature

The correct answer is: Drift and runoff

Applying pesticides in the right weather conditions is crucial for effective pest control and cost efficiency. When considering the factors that can lead to pesticide loss, drift and runoff are particularly significant. Drift refers to the movement of pesticide particles away from the intended target area, often due to wind. This can result in pesticides not reaching the intended pests, leading to ineffective treatment and the need for reapplication, thus increasing costs. By applying pesticides when conditions minimize wind speed, the risk of drift is reduced, ensuring that the product stays where it is needed. Runoff, on the other hand, occurs when pesticides are washed away from the target area, typically due to rain or excessive irrigation. If pesticides are applied just before a rain event, significant amounts can be lost as they wash away. By avoiding application during wet weather or when heavy rain is forecasted, applicators can ensure that the pesticide remains effective in the target area, thus preventing unnecessary waste and the need for additional applications. Focusing on drift and runoff allows for more effective pest management and cost-saving opportunities, making it easier to achieve desired results while reducing environmental impact.