Texas Pesticide Applicator Practice Exam

What is one way to mitigate the effects of drift during application?

1. Increasethe application rate

2. Apply during windy conditions

3. Use larger droplet sizes

4. Use smaller nozzles

The correct answer is: Use larger droplet sizes

Using larger droplet sizes is an effective way to mitigate the effects of drift during pesticide application. When larger droplets are used, they are less susceptible to wind currents and atmospheric conditions that can carry smaller droplets away from the intended target area. Drift occurs when airborne pesticide particles move from the application site due to environmental factors, but larger droplets settle more quickly to the ground, decreasing their potential for unintended dispersion. In contrast, increasing the application rate may lead to over-saturation or run-off without addressing drift. Applying during windy conditions increases the likelihood of drift, making it counterproductive. Using smaller nozzles actually produces finer droplets that can be more prone to drift, as they remain airborne longer and are more affected by wind. Therefore, choosing larger droplet sizes is a strategic method to enhance control and effectiveness during pesticide applications.