The risk of damage to nontarget plants from drift of volatile pesticides is ______________.

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Prepare for the Iowa DOA CORE Pesticide Applicator's License Test. Study with flashcards, multiple choice questions, and detailed explanations. Get ready for your exam!

Multiple Choice

The risk of damage to nontarget plants from drift of volatile pesticides is ______________.

Explanation:
Volatility of pesticides is highly temperature-dependent. When temperatures rise, the pesticide’s vapor pressure increases, so more of the chemical evaporates after application. Those vapors can move with air currents and reach nearby non-target plants, raising the risk of injury. This makes the drift risk greater at high temperatures. Droplet size mainly affects liquid spray drift, not vapor drift, so it’s not the primary factor for volatile pesticides.

Volatility of pesticides is highly temperature-dependent. When temperatures rise, the pesticide’s vapor pressure increases, so more of the chemical evaporates after application. Those vapors can move with air currents and reach nearby non-target plants, raising the risk of injury. This makes the drift risk greater at high temperatures. Droplet size mainly affects liquid spray drift, not vapor drift, so it’s not the primary factor for volatile pesticides.

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