A fungicidal mixture comprises a) a phenyl benzyl ether derivative of the formula I.a, I.b or I.c,  and/or a carbamate of the formula Id where X is CH or N, n is 0, 1 or 2 and R is halogen, Cl-C4-alkyl or C1-C4-haloalkyl, it being possible for the radicals R to be different if n is 2, or a salt or adduct thereof, and b) a N-acetonylbenzamide of the formula II  where: R1 and R3 independently of one another are each halogen or C1-C4-alkyl; R2 is cyano, C1-C4-alkyl, C2-C4-alkenyl, C2-C4-alkynyl or C1-C4-alkoxy; R4 is hydrogen or C1-C4-alkyl; R5 is C2-C4-alkyl; R6 is thiocyano, isothiocyano or halogen, or a salt or adduct thereof, in a synergistically effective amount.