HRAC, classification system

Table 1.1 HRAC classification system in comparison to WSSA and Australian code system. (Adapted from Refs. [3-5].)...

The global HRAC group proposed a classification system for herbicides according to their target sites, modes of action, similarity of induced symptoms or chemical classes (Table 1.1). 

The classification system is describing not only the chemical family belonging to a specific mode of action but all compounds via their common names counted to each family, as shown in Table 1.2 for the modes of action such as Inhibition of DHP (dihydropteroate) synthase , Microtubule assembly inhibition , Inhibition of mitosis/microtubule organization , Inhibition of VLCFAs (Inhibition of cell division) and Inhibition of cell wall (cellulose) synthesis as examples (not mentioned in other chapters of this book) (for a detailed table see www. plantprotection.org/HRAC/). The scheme The World of Herbicides available under this internet address also shows all chemical structures of the different herbicides belonging to the different chemical families. 

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