Fungicides are grouped by ‘families’ or ‘classes’ that share a common mode of action and chemical structure. The Mode of Action Group (A, B, etc.) refers to the biochemical process inhibited by the fungicide, such as cell wall synthesis, respiration, etc. Sub-groups (A1, A2, etc.) within a Mode of Action Group refer to specific biochemical […]
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Insecticide Spraying by the Numbers
To make it easy to recognize different classes or modes of action, the Insecticide Resistance Action Committee (IRAC) has created a classification scheme that distinguishes modes of action by group numbers. IRAC is an industry-organized group of pest management specialists that develops resistance management guidelines for global implementation. The U.S. Environmental Protection Agency requested agricultural chemical […]