Pyrimethanil

Pyrimethanil is a strobilurin fungicide belonging to the anilinopyrimidine class. Pyrimethanil is a broad-spectrum contact fungicide for the control of Botrytis spp. on a wide variety of crops. Pyrimethanil inhibits the biosynthesis of methionine and other amino acids in Botrytis cinerea. (In Vitro) :Pyrimethanil (3 days) decreased polygalacturonase, cellulase, proteinase and laccase activities. Pyrimethanil resulted in 50% reduction (IC50) in total enzyme activities such as polygalacturonase, cellulase and proteinase (IC50 = approximately 2.5 μM), and laccase (IC50 = 1.0 μM) .