A composition suitable for control of diseases caused by phytopathogens comprising (A) a compound of formula (I) wherein R1 is difluoromethyl or trifluoromethyl and R2 is methyl, difluoromethyl, trifluoromethyl or cyclopropyl; and (B) at least one compound selected from compounds known for their fungicidal activity; and a method of controlling diseases on useful plants, especially leaf spot diseases on cereals.;