Insecticide Classification Guide

Rotate Insecticides to Control Resistant Insects Effectively

Rotate insecticides with different modes of action. Use chart below to identify the modes of action of commonly used insecticides.


Table Notes:

a) Inclusion of a compound in the classification above does not necessarily signify regulatory approval.
b) MoA assignments will usually involve identification of the target protein responsible for the biological effect, although groupings can be made where compounds share distinctive physiological effects and have related chemical structures.
c) Groups 26 and 27 are unassigned at this time and have therefore been omitted from the table.
d) A compound with an unknown or controversial MoA or an unknown mode of toxicity will be held in group ‘UN’ until evidence becomes available to enable that compound to be assigned to a more appropriate MoA class.
e) Actives in groups marked with a * are thought not to share a common target site and therefore may be freely rotated with each other unless there is reason to expect cross-resistance. These groups are 8, 13, and UN.


IRAC MoA Classification Scheme v. 7.3, February 2014, with permission. Further information is available from
IRAC is a specialist technical committee providing best resistance management practice and does not endorse the use of specific products.