Prothioconazole is a synthetic compound of the triazolinthione family of compounds. It is a broad spectrum systemic fungicide, with curative, preventative and eradicative action. It can be used as both a seed treatment and a foliar treatment. After absorption it moves into cells of the target organisms, effecting sterol biosynthesis and thereby disrupting membrane structure. This ultimately effects hyphal growth and germ tube elongation. Fungi susceptible to prothioconazole include Early leaf spot (Mycosphaerella arachidis), eyespot, Fusarium spp., powdery mildew, net blotch, phoma leaf spot, Rhynchosporium secalis, Sclerotinia sclerotiorum, Sclerotium rolfsii, Septoria tritici, Septoria nodorum, rust and tan spot. Prothioconazole is approved for use on barley, durum wheat, oats, oilseed rape (winter), rye (winter), and wheat. Prothioconazole is sold in combination with numerous other fungicides, including bifaxen, spiroxamine, tebuconazole, fluoxastrobin, trifloxystrobin and floupyram.
