PROBLEM THERE ARE PROVIDE A COMPOSITION FOR CONTROLLING PLANT DISEASES AND A METHOD FOR CONTROLLING PLANT DISEASES HAVING EXCELLENT CONTROL EFFECT FOR PLANT DISEASES. SOLUTION A COMPOSITION FOR CONTROLLING PLANT DISEASES COMPRISING, AS ACTIVE INGREDIENTS, A COMPOUND REPRESENTED BY FORMULA (1) WHEREIN X1 REPRESENTS A METHYL GROUP, A DIFLUOROMETHYL GROUP OR AN ETHYL GROUP; X2 REPRESENTS A METHOXY GROUP OR A METHYLAMINO GROUP; AND X3 REPRESENTS A PHENYL GROUP, A 2-METHYLAMINO GROUP OR A 2,5-DIMETHYLPHENYL GROUP, AND AT LEAST ONE AZOLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF BROMUCONAZOLE, CYPROCONAZOLE, DIFENOCONAZOLE, FENBUCONAZOLE, FLUQUINCONAZOLE, HEXACONAZOLE, IMIBENCONAZOLE, IPCONAZOLE, MYCLOBUTANIL, PROTHIOCONAZOLE, SIMECONAZOLE, TETRACONAZOLE, TRITICONAZOLE AND METCONAZOLE.