PROBLEM TO BE SOLVED: To provide a composition that exhibits an excellent controlling effect on a plant disease.SOLUTION: The plant disease-controlling composition comprises a compound represented by formula (I) (wherein R1 is hydrogen or methyl and R2 is methyl, difluoromethyl or trifluoromethyl) and chlorothalonil and exhibits an excellent controlling effect on a plant disease.COPYRIGHT: (C)2012,JPO&INPIT【課題】植物病害に対する優れた防除効果を示す組成物を提供すること。【解決手段】式(I)〔式中、R1は水素原子又はメチル基を表し、R2はメチル基、ジフルオロメチル基又はトリフルオロメチル基を表す。〕で示される化合物とクロロタロニルとを含有する植物病害防除組成物は植物病害に対する優れた防除効果を示す。【選択図】なし