A fungicidal composition comprising a mixture of components (A) and (B), wherein components (A) and (B) are as defined in claim 1, and use of the compositions in agriculture or horticulture for controlling or preventing infestation of plants by phytopathogenic microorganisms, preferably fungi.揭露了一種包含組分(A)和(B)之混合物之殺真菌組成物,其中組分(A)和(B)係如申請專利範圍第1項中所定義的,以及該等組成物在農業或園藝學中用於控制或預防植物被植物病原的微生物,較佳的是真菌侵染之用途。