The IRAC Mode of Action Classification

The definitive, global classification scheme on the target sites of acaricides and insecticides

The IRAC Mode of Action (MoA) classification provides growers, advisors, extension staff, consultants and crop protection professionals with a guide to the selection of acaricides or insecticides for use in an effective and sustainable acaricide or insecticide resistance management (IRM) strategy.

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Available in English, Arabic, Bahasa(Indonesian), French, Hindi, Italian, Japanese, Khmer, Korean, Mandarin Chinese, Portuguese, Russian, Spanish and Tagalog (Philippines).

Search online
Our web-based classification allows you to browse and filter to effective rotations of active ingredients.
Search the classification
Get the app
Browse the classification and chemical structures on your phone or tablet with our mobile app.
Download the app
Print the poster
Understand the compounds behind the active ingredients in your IRM strategy.

The brochure
Learn about mode of action with our printable brochure
MoA Brochure
The training module
Learn about mode of action with our training module
- Tutorial on MoA Mechanisms

Download the MoA Scheme
39 pages of detailed classification information complemented by supplementary guidance.
Download PDF
Review the literature
Explore our library of published references associated with the different MoA Groups
Review the literature
Meet the MoA team
Our team of technical experts manage the classification and production of educational materials.
Meet the team
Submit an active
Submissions are reviewed by our mode of action team for inclusion in the IRAC Mode of Action Classification.
Submit an active