Fungicidal mixtures comprising, as active components,1) N′;-[4-(4,5-dichlorothiazol-2-yl)oxy-2,5-dimethyl-phenyl]-N-ethyl-N-methyl-formamidine (I) and2) a fungicidal compound II selected from IIa to IId,methods for controlling harmful fungi using mixtures of compound I and a fungicidal compound II, the use of compound I with a fungicidal compound II for preparing such mixtures, and also compositions and plant propagation material comprising such mixtures and compositions.