Which option correctly differentiates particle drift from vapor drift?

Which option correctly differentiates particle drift from vapor drift?

• A. Particle drifts occur as droplets; vapor drift occurs as fumes.
• B. Particle drifts occur as fumes; vapor drift occurs as droplets.
• C. They are the same phenomenon with different terminology.
• D. Particle drift refers to soil movement, vapor drift refers to water movement.

Answer: (A)

Drift comes in two physical forms, and they behave differently in the air. Particle drift involves liquid spray droplets moving away from the target as visible or near-visible mist. Vapor drift involves the pesticide evaporating and moving as a gas (fumes) with air currents. So the best statement is that particle drift occurs as droplets and vapor drift occurs as fumes. The other ideas mix up the forms or misattribute drift to soil or water movement, which isn’t how drift from application works.

Drift comes in two physical forms, and they behave differently in the air. Particle drift involves liquid spray droplets moving away from the target as visible or near-visible mist. Vapor drift involves the pesticide evaporating and moving as a gas (fumes) with air currents. So the best statement is that particle drift occurs as droplets and vapor drift occurs as fumes. The other ideas mix up the forms or misattribute drift to soil or water movement, which isn’t how drift from application works.