Bixafen is a fungicide belonging to the pyrazole-carboxamide chemical class, developed to control a broad spectrum of fungal diseases in various cereal crops. Its primary mode of action is the inhibition of succinate dehydrogenase (SDH), a critical enzyme in the mitochondrial respiratory chain of fungi. As an SDHI (Succinate Dehydrogenase Inhibitor), bixafen disrupts the fungal pathogen's energy supply, thereby preventing its growth and proliferation.