A PLANT DISEASE CONTROL COMPOSITION COMPRISING A CARBOXAMIDE COMPOUND REPRESENTED BY FOLLOWING FORMULA (I), WHEREIN R1 REPRESENTS A HYDROGEN ATOM OR A METHYL GROUP, AND R2 REPRESENTS A METHYL GROUP, A DIFLUOROMETHYL GROUP OR A TRIFLUOROMETHYL GROUP, AND ONE OR MORE QOL COMPOUNDS SELECTED FROM GROUP (A) CONSISTING OF DIMOXYSTROBIN, AZOXYSTROBIN, FLUOXASTROBIN, PYRACLOSTROBIN, KRESOXIMMETYL, PICOXYSTROBIN, TRIFLOXYSTROBIN AND N-METHYL-ALPHA-METHOXYIMINO-2-[(2,5-DIMETYLPHENOXY)METHYL]PHENYLACETAMIDE IS PROVIDED IS PROVIDED BY THE PRESENT INVENTION, AND THIS COMPOSITION HAS AN EXCELLENT EFFECT FOR CONTROLLING A PLANT DISEASE.