The present invention relates to a fungicidal composition comprising dimethomorph, fosetyl-aluminium and a dithiocarbamate. The composition is claimed as being used in a method of treating and/or preventing fungal infestations in plants or plant parts. Preferably the dithiocarbamate is cyclic or polymeric, and is preferably selected from metam, thiram, ziram, dazomet, metiram and propineb.