Illinois Pesticide Applicator Practice Test

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Prepare for the Illinois Pesticide Applicator Test. Use flashcards and multiple-choice questions to hone your skills. Each question comes with hints and explanations to help you understand comprehensively. Ensure success with our study resources!

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What do surfactants do in pesticide applications?

  1. Increase the toxicity of the pesticide

  2. Decrease the surface tension of water

  3. Enhance the odor of the pesticide

  4. Prevent evaporation of the pesticide

The correct answer is: Decrease the surface tension of water

Surfactants play a crucial role in pesticide applications by decreasing the surface tension of water. When water’s surface tension is lowered, it allows the pesticide to spread more evenly over the plant surface or target area, facilitating better coverage and absorption. This increased spreadability ensures that the pesticide can adequately make contact with the pest or plant tissue, enhancing its effectiveness. By improving the spreading and wetting properties of the pesticide solution, surfactants contribute to more efficient applications and can lead to better control of the target pests or diseases.

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