The present invention relates to mixtures comprising as active components a) carbamate derivatives of the formula (I) in which the substituents and the index have the following meaning: T is CH or N n is 0, 1 or 2 R is halogen, C1-C4-alkyl or C1-C4-haloalkyl, it being possible for the radicals R to be different when n is 2, and b) at least one compound of the formula (II).