Wyoming Pesticide Applicator Certification Practice Test

What term refers to the off-target movement of a pesticide during a liquid application?

1. Leaching

2. Particle Drift (Dust Drift)

3. Runoff

4. Spray Drift

The correct answer is: Spray Drift

Pesticides are chemicals used to control pests such as insects, weeds, and diseases. When a pesticide is applied as a liquid, there is a possibility that it may move away from its intended target. This off-target movement is referred to as spray drift. A. Leaching refers to the movement of pesticides through the soil and into groundwater. B. Particle drift, also known as dust drift, refers to the movement of dry pesticide particles through the air. C. Runoff refers to the movement of pesticides off the surface of the soil and into nearby bodies of water. D. Spray drift, as mentioned earlier, specifically refers to the off-target movement of liquid pesticides during application. Therefore, the most appropriate term for the off-target movement of a pesticide during a liquid application is spray drift.