An aqueous horticultural microbicidal composition suspension comprising: Component (A) a specific oxime compound or salt or N oxide thereof Component (B) at least one kind selected from the group consisting of polyoxyalkylene alkyl ethers polyoxyalkylene fatty acid esters polyoxyalkylene sorbitan fatty acid esters and silicone surfactants and Component (C) at least one kind selected from non component (B) nonionic and anionic surfactants.
