PROBLEM TO BE SOLVED: To provide an agent of controlling plant diseases using antagonistic microorganisms, and a method of controlling plant diseases using the agent.SOLUTION: A plant disease controlling agent contains bacterium belonging to Bacillus having the antagonistic capability for plant pathogens, and agricultural materials.COPYRIGHT: (C)2014,JPO&INPIT【課題】拮抗微生物を利用した植物病害防除剤及びそれを用いた植物病害の防除方法を提供する。【解決手段】植物病原菌に対する拮抗能力を有するバチルス属(Bacillus)に属する細菌と農業系資材とを含有する植物病害防除剤。【選択図】図3