Modes of Action

The IRAC Mode Of Action (MoA) Classification is the definitive global authority on the target site of insecticides.  It is the basis of MoA labelling of insecticides worldwide and is an essential tool for the development of insecticide resistance management (IRM) strategies. For more information please visit the MoA Team page, and should you wish you are welcome to submit an active for classification by the IRAC MoA Team.

The colour scheme below associates mode of action into broad categories based on the physiological functions affected, as an aid to understanding symptomology, speed of action and other properties of the insecticides, and not for any resistance management purpose. Rotations for resistance management should be based only on the numbered mode of action groups.