Fungicidal compositions are provided that comprise a silthiofam-type fungicide and a fungicide that is selected from the group consisting of certain imidazole fungicides, certain diazole fungicides, certain triazole fungicides and certain strobilurin type fungicides. Methods for treating plants and plant propagation materials with the fungicidal compositions are also taught, as are plants and their propagation materials which have been so treated, and controlled release formulations that contain the fungicidal compositions.