It is required to obtain the as effective as compared to conventional drug that in order to provide an agricultural and horticultural agent with a reduced application rate of the drug, agricultural and horticultural agent according to the present invention comprises a plurality of active ingredient, an azole derivative and one of the active ingredients, but represented by the following general formula (I) It is. (In the formula (I), Ra and Rb represents a predetermined hydrocarbon group, .Y with at least one of which is substituted with a hydrogen atom a chlorine atom or a bromine atom, a chlorine atom or a fluorine atom .m represents 0 or 1.)従来の薬剤に比して同程度の効果を得るために必要とされる薬剤の散布量を低減した農園芸用薬剤を提供するため、本発明に係る農園芸用薬剤は、有効成分を複数含み、当該有効成分の1つが下記一般式(I)で示されるアゾール誘導体である。【化1】(式(I)中、RaおよびRbは所定の炭化水素基を表し、少なくとも一方は水素原子と置換された塩素原子または臭素原子を有する。Yは、塩素原子またはフッ素原子を表す。mは、0または1を表す。)
