Illinois Field Crop Applicators Practice Test

What type of drift is associated with glyphosate and paraquat?

1. Particle drift

2. Vapor drift

3. Ground drift

4. Thermal drift

The correct answer is: Particle drift

The correct answer is associated with particle drift, which refers to the movement of pesticide particles through the air during or after application. Glyphosate and paraquat are both widely used herbicides, and their application can result in this type of drift if not applied correctly. Particle drift occurs when small droplets or particles of the herbicide are carried away from the target area by wind or air currents. This can unintentionally affect non-target crops or plants nearby, leading to potential crop damage or contamination. In contrast, vapor drift involves the movement of vaporized pesticide, often when the temperature rises, causing the chemicals to volatilize and spread. Ground drift typically refers to pesticides that might wash off the ground or vegetation after application rather than being transported through the air. Thermal drift is connected to the warmth in the atmosphere that can influence how droplets behave, but it is not a distinct type of drift associated specifically with glyphosate and paraquat. Understanding the nuances of drift types is essential for effective and responsible pesticide application.