H:/REC lN-erwvenNRPortb] DC C/REC/4993490_1.doc2503/2013 Abstract A composition suitable for control of diseases caused by phytopathogens comprising (A) a compound of formula I :x N-H N-N wherein R1 is difluoromethyl or trifluoromethyl and X is chloro, fluoro or bromo; and (B) at least one compound selected from compounds known for their fungicidal activity; and a method of controlling diseases on useful plants, especially rust diseases on soybean plants.