Use of substituted 1,2,4-oxadiazoles for combating phytopathogenic fungi

A method for combating phytopathogenic harmful fungi, comprising treating the fungi, the plants, the soil or seeds to be protected against fungal attack, with an effective amount of at least one compound of formula I, or an N-oxide, or an agriculturally acceptable salt thereof,

• wherein:
• A is phenyl, or a 5- or 6-membered aromatic heterocycle;
• wherein the ring member atoms of the aromatic heterocycle include besides carbon atoms 1, 2, 3 or 4 heteroatoms selected from N, O and S as ring member atoms;
• and with the provision that the aromatic heterocycle cannot contain 2 contiguous atoms selected from O and S;
• and wherein the phenyl ring or the 5- or 6-membered aromatic heterocycle is unsubstituted or substituted with n identical or different groups RA;
• wherein
• n is 0, 1, 2, 3, or 4;
• RA is halogen, cyano, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, or C1-C6-haloalkoxy;
• Y is a direct bond, —O—, or —S—;
• V is a divalent moiety —CR3R4—;
• wherein
• R3, R4 independently of each other are selected from the group consisting of hydrogen, hydroxy, halogen, cyano, C1-C4-alkyl, C2-C4-alkenyl, C2-C4-alkynyl, C1-C4-alkoxy C1-C4-haloalkyl, and C1-C4-haloalkoxy;
• or R3 and R4 together with the carbon atom to which they are bound form a cyclopropyl ring;
• or, if Y is a direct bond, V is absent, with the exception of a method practiced for the therapeutic treatment of the human or animal body.