Herbicide Formulation and Application Quiz
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Questions and Answers

What is the main function of adjuvants in herbicide formulations?

  • Control the target weed
  • Improve ease of application and mixing (correct)
  • Enhance herbicide phytotoxicity
  • Increase inert ingredient concentration

Which is NOT a type of dry herbicide formulation?

  • Granule
  • Wettable powder
  • Water-Dispersible Granules (WDG)
  • Soluble concentrate (correct)

What is the main role of activator adjuvants in herbicide formulations?

  • Increase inert ingredient concentration
  • Enhance product efficacy (correct)
  • Extend the shelf life of the herbicide
  • Act as a diluent for the active ingredient

What defines an inert ingredient in herbicide formulations?

<p>Additives with no herbicidal activity (A)</p> Signup and view all the answers

Which is a type of liquid herbicide formulation?

<p>Emulsifiable concentrate (D)</p> Signup and view all the answers

Study Notes

  • Herbicides Formulation: a mixture of active ingredient (a.i.) and inert ingredient
  • Active ingredient: chemical causing phytotoxicity and controlling target weeds
  • Inert ingredient: additives, diluents, extenders, or adjuvants with no herbicidal activity
  • Herbicide formulation: available in dry (granule, pallet, etc.) and liquid (concentrates, emulsifiable, oil soluble, ready-to-use) forms
  • AGR 3102: Principles of Weed Science, Week 9 topic: Herbicides - Adjuvants
  • Adjuvants: compounds added to herbicide formulations or tank mixes to enhance application, effectiveness, or stability
  • Two main functions: 1) improve ease of application, mixing, and handling 2) enhance product efficacy
  • Two basic groups: 1) Activator adjuvants: increase herbicide deposition, adhesion, retention, penetration, and absorption into weeds.

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Test your knowledge on herbicide formulation and application. Learn about active and inert ingredients, different types of herbicide formulations, and the primary site-of-action targeted by herbicides.

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