Skip to main content
Home

Secondary Menu

  • Careers
  • People
  • Blogs
  • Events
  • For ANR Employees

User account menu

Log in Donate
Home

Main navigation

  • About
  • Locations & Centers
    • Counties
    • Research and Extension Centers (RECs)
  • Topics
    • Topics
      • Agriculture
      • Fire
      • Forests
      • Nutrition & Health
      • Pest Management & Plant Health
      • Rangelands
      • Water
      • Youth Development
      • Yard & Garden
  • Programs & Institutes
    • Agriculture
      • UC ANR Innovate
      • UC Integrated Pest Management Program
      • Sustainable Agriculture Research and Education Program
      • UC Organic Agriculture Institute
      • UC ANR Small Farms Network
      • Research and Information Centers (RICs)
    • Environment
      • California Institute for Water Resources
      • UC Environmental Stewards
      • Informatics and Geographic Information Systems
      • UC ANR Fire Network
    • Health & Nutrition
      • Community Nutrition and Health
      • CalFresh Healthy Living, UC
      • Expanded Food and Nutrition Education Program
      • Nutrition Policy Institute
      • UC Master Food Preserver Program
    • Youth & Community
      • 4-H Youth Development Program
      • UC Master Gardener Program
  • News
  • About
  • Locations & Centers
    • Counties
    • Research and Extension Centers (RECs)
  • Topics
    • Topics
      • Agriculture
      • Fire
      • Forests
      • Nutrition & Health
      • Pest Management & Plant Health
      • Rangelands
      • Water
      • Youth Development
      • Yard & Garden
  • Programs & Institutes
    • Agriculture
      • UC ANR Innovate
      • UC Integrated Pest Management Program
      • Sustainable Agriculture Research and Education Program
      • UC Organic Agriculture Institute
      • UC ANR Small Farms Network
      • Research and Information Centers (RICs)
    • Environment
      • California Institute for Water Resources
      • UC Environmental Stewards
      • Informatics and Geographic Information Systems
      • UC ANR Fire Network
    • Health & Nutrition
      • Community Nutrition and Health
      • CalFresh Healthy Living, UC
      • Expanded Food and Nutrition Education Program
      • Nutrition Policy Institute
      • UC Master Food Preserver Program
    • Youth & Community
      • 4-H Youth Development Program
      • UC Master Gardener Program
  • News
  1. UC ANR
  2. Herbicide Symptoms
  3. Modes of Action
Integrated Pest Management Logo
Herbicide Symptoms

Modes of Action

Print

Brief description of what a "mode of action" is and why it is significant in choosing pesticides (especially herbicides)

Pages with information on each mode of action

  • Acetolactate synthase (ALS) or Acetohydroxy acid synthase (AHAS) inhibitors
  • Acetyl CoA carboxylase (ACCase) inhibitors
  • Carotenoid biosynthesis inhibitors
  • Cellulose inhibitors (Cell wall synthesis)
  • EPSP synthase inhibitors
  • Glutamine synthesis inhibitors
  • Lipid synthesis inhibitors (not ACCase)
  • Long-chain fatty acid inhibitors
  • Microtubule inhibitors
  • Photosystem I (PSI) electron diverter
  • Photosysytem II inhibitors
  • PPO inhibitors (protoporphyrinogen oxidase)
  • Synthetic auxins
  • Unknown mode of action

 

    • Home
    • More Information
    • Herbicide Damage
    • Modes of Action
      • ALS or AHAS Inhibitors
      • ACCase Inhibitors
      • Carotenoid Biosynthesis Inhibitors
      • Cellulose Inhibitors
      • EPSP Synthase Inhibitors
      • Glutamine Synthesis Inhibitors
      • Lipid Synthesis Inhibitors
      • Long Chain Fatty Acid Inhibitors
      • Microtubule Assembly Inhibitors
      • Photosystem I (PSI) Electron Diverter
      • Photosystem II Inhibitors
      • PPO Inhibitors
      • Synthetic Auxins
      • Unknown Mode of Action
    • Herbicides (Active Ingredient & Trade Name List)
    • Plants
    • About Us

    Share This Page

    • Facebook
    • X (Twitter)
    • Whatsapp
    • Messenger
    • LinkedIn

    Home

    Legal Menu

    • Copyright
    • Nondiscrimination Statements
    • Accessibility
    • Contact
    • Privacy

    © 2025 Regents of the University of California