<;P>;PROBLEM TO BE SOLVED: To provide a drug capable of simultaneously controlling a plurality of diseases by mixing bactericidal compounds having an effect on different diseases. <;P>;SOLUTION: The bactericidal mixed composition for agriculture and horticulture comprises a compound represented by formula (1) or its acid addition salt and at least another bactericidal compound. In the formula, R represents hydrogen, -COR<;SP>;1<;/SP>;, -COOR<;SP>;1<;/SP>;(wherein R<;SP>;1<;/SP>;is a 1-4C alkyl group), -COCH<;SB>;2<;/SB>;OCH<;SB>;3<;/SB>;or -COCH<;SB>;2<;/SB>;OCOCH<;SB>;3<;/SB>;. <;P>;COPYRIGHT: (C)2007,JPO&INPIT