The present invention provides a fungicidal composition useful as an agricultural and horticultural fungicide having remarkably improved controlling effects against plant diseases, and a method for controlling plant diseases using the composition. A fungicidal composition comprising, as active ingredients, (a) 3-(2,3,4-trimethoxy-6-methylbenzoyl)-5-chloro-2-methoxy-4-methylpyridine (pyriofenone) or its salt and (b) at least one fungicide selected from the group consisting of bixafen, fluxapyroxad, penflufen, isopyrazam, fluopyram, ametoctradin, fenpyrazamine and sedaxane, and a method for controlling plant diseases, which comprises applying the fungicidal composition to plants.
