PURPOSE: The titled germicide, containing a triazole derivative and methyl 1-(n- butylcarbamoyl)benzimidazole-2-ylcarbamate, etc. well known as an agricultural and horticultural activator as active constituents, and capable of exhibiting germicidal and disinfectant effect in a small amount of the chemicals.

CONSTITUTION: An agricultural and horticultural germicide containing one triazole derivative of the formula (X is ≤2 halogens or lower alkyls; Y is ≤2 halogens) and one or more selected from a compound (A): methyl 1-(n-butylcarbamoyl)benzimidazol-2-ylcarbamate, compound (B): methylbenzimidazol-2-ylcarbamate, compound (C): 2-(thiazol-4-yl)benzimidazole and compound (D): 1,2-di(3- methoxycarbonyl-2-thioureido)benzene in an amount of preferably 0.1W10pts.wt. based on one pts.wt. triazole derivative as active constituents.