<；P>；PROBLEM TO BE SOLVED: To provide a plant disease controlling composition which has a plurality of spectra of diseases against various plant disease bacteria and exhibits an excellent controlling effect (a synergistic controlling effect) unpredictable from a single component. <；P>；SOLUTION: The plant disease controlling composition comprises at least one quinoline compound represented by formula (I) (wherein R<；SB>；1<；/SB>；and R<；SB>；2<；/SB>；are each an alkyl which may be substituted, an aryl which may be substituted or the like； R<；SB>；3<；/SB>；and R<；SB>；4<；/SB>；are each H, an alkyl which may be substituted or the like； X is a halogen, an alkyl which may be substituted or the like； Y is a halogen, an alkyl or the like； n is 0-4； and m is 0-6) or a salt thereof (group a) and one or more antibacterial compounds (group b) selected from the group consisting of a strobilurin based compound, a triazole based compound and the like as active ingredients. <；P>；COPYRIGHT: (C)2010,JPO&INPIT
