Washington Pesticide Laws and Safety Practice Test

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Prepare for the Washington Pesticide Laws and Safety Exam. Enhance your knowledge with multiple-choice questions and study materials tailored for Washington's regulations. Get ready to succeed on your test!

Practice this question and more.


What is the purpose of wetting agents in pesticide applications?

  1. To increase the volume of the pesticide.

  2. To solidify the pesticide for easier handling.

  3. To make the pesticide taste better.

  4. To reduce the surface tension of the droplets for better coverage.

The correct answer is: To reduce the surface tension of the droplets for better coverage.

Wetting agents, also known as surfactants, are added to pesticide formulations to lower the surface tension of water droplets. This helps the droplets to spread out more evenly and allow for better coverage of the plant surfaces. Option A is incorrect because wetting agents do not affect the volume of the pesticide. Option B is incorrect because wetting agents are typically added to liquid pesticides, not solid ones. Option C is incorrect because the taste of the pesticide is not a consideration in its effectiveness.