The invention relates to a method of combating phytopathogenic diseases on crop plants which comprises applying to the crop plants or the locus thereof being infested with said phytopathogenic disease an effective amount of a combination of a) a benzophenone of formula I  wherein R1 is methoxy or methyl, R2 is C1-C4alkoxy or 2-halogenbenzyloxy, R3 is C1-C4alkoxy, R4 is C1-C4alkyl, halogen or trifluoromethyl, and R5 is hydrogen, halogen, C1-C4alkoxy, trifluoromethyl or nitro; in association with b) a compound selected from the group comprising compounds of formulae II, III, IV, V, VI, VII, VIII, IX, X and XI as described herein.