PROBLEM TO BE SOLVED: To provide an insecticidal fungicidal agent composition in which, when diluted with water, separation or turbidity or precipitate does not occur.SOLUTION: The inventive insecticidal fungicidal agent composition comprises: an imidazole-based fungicide at least one kind of pyrethroidal compound selected from the group consisting of phenothrin, permethrin and cyphenothrin a polyoxyethylene hydrogenated castor oil polyoxyethylene alkyl ether an anionic surfactant and alcohol. The weighted average of HLB value of the polyoxyethylene hydrogenated castor oil and polyoxyethylene alkyl ether included in the composition is in a range of 10 to 12.SELECTED DRAWING: None
