The present invention relates to novel 7-amino-6-hetaryl-1,2,4-triazolo[1,5-a]pyrimidine compounds and to their agriculturally acceptable salts, and also to their use for controlling harmful fungi, and also to crop protection compositions comprising at least one such compound as active component.The novel 7-amino-6-hetaryl-1,2,4-triazolo[1,5-a]pyrimidine compounds can be described by the formula I where the substituents R1, R2, Het, X and Y in formula I are as defined below: Het is a 6-membered heteroaromatic radical selected from the group consisting of pyridinyl, pyridazinyl, pyrazinyl, 1,2,4-triazinyl and 1,3,5-triazinyl, where the 6-membered heteroaromatic radical may have 1, 2 or 3 identical or different substituents L, R1, R2 independently of one another are hydrogen, C1-C8-alkyl, C1-C8-haloalkyl, C1-C8-alkoxy, C3-C8-cycloalkyl, C3-C8-cycloalkoxy, C5-C10-bicycloalkyl, C3-C8-halocycloalkyl, C2-C8-alkenyl, C2-C8-alkenyloxy, C4-C10-alkadienyl, C2-C8-haloalkenyl, C3-C8-cycloalkenyl, C3-C8-halocycloalkenyl, C2-C8-alkynyl, C2-C8-alkynyloxy, C2-C8-haloalkynyl, NH2, C1-C8-alkylamino, di-C1-C8-alkylamino, phenyl, naphthyl, or a five- or six-membered saturated, partially unsaturated or aromatic heterocycle, X is hydrogen, halogen, OH, cyano, C1-C4-alkyl and the like, Y is hydrogen, halogen, cyano, C1-C4-alkyl and the like.