The present invention relates to a compound of the formula (I) and/or salts thereof in which R is a hydrocarbon radical or hydrocarbonoxy radical, which is unsubstituted or substituted and inclusive of substituents has 1 to 30 carbon atoms, or is a heterocyclyl radical or heterocyclyloxy radical which is unsubstituted or substituted, or R is a radical OC(O)R3, S(O)nR3, OS(O)nR3, F, Br, I, OH, CN, NO2, NH2, SF5, NR4R5 or Si(R6)3, where n is 0, 1 or 2, R1 independently at each occurrence is halogen, OH, SH, a carbon-free, nitrogen-containing radical or a carbon-containing radical which has 1 to 30 carbon atoms, or R0 and R# form with one another a nitrogen-containing heterocyclic ring, I is 0, 1, 2 or 3, R2 is a hydrogen atom or a hydrocarbon radical which is unsubstituted or substituted and inclusive of substituents has 1 to 20 carbon atoms, R3 is a hydrocarbon radical or hydrocarbonoxy radical which is unsubstituted or substituted and inclusive of substituents has 1 to 30 carbon atoms, or is a heterocyclyl radical or heterocyclyloxy radical which is unsubstituted or substituted, or R3 is a hydrogen atom, CN or NR4R5, R4 is a group of the formula R0-Q0-, in which R0 is a hydrogen atom, an acyl radical, a hydrocarbon radical or a heterocyclyl radical, each of the last-mentioned two radicals being unsubstituted or substituted and inclusive of substituents having 1 to 30 carbon atoms and Q0 is a direct bond or a divalent group of the formula —O— or —N(R#)—, R# being a hydrogen atom, an acyl radical or a hydrocarbon radical and the last-mentioned radical being unsubstituted or substituted and inclusive of substituents having 1 to 30 carbon atoms, or R0 and R# form with one another a nitrogen-containing heterocyclic ring, R5 is a hydrogen atom, an acyl radical, a hydrocarbon radical or a heterocyclyl radical, each of the last-mentioned two radicals being unsubstituted or substituted and inclusive of substituents having 1 to 30 carbon atoms, or R4 and R5 form with one another a nitrogen-containing heterocyclic ring, R6 is a hydrocarbon radical which is unsubstituted or substituted, W is an oxygen atom or a sulfur atom, X and Y independently of one another are each a hydrogen atom, halogen, (C1-C6)alkyl, (C1-C6)alkoxy or (C1-C6)alkylthio, each of the last-mentioned three radicals being unsubstituted or substituted by one or more radicals from the consisting of halogen, (C1-C4)alkoxy, and (C1-C4)alkylthio, or is mono- or di[(C1-C6)alkyl]amino, (C2-C6)alkenyl, (C2-C6)alkynyl, (C3-C6)alkenyloxy or (C3-C6)alkynyloxy, and V and Z independently of one another are each CH or N. The compound is suitable in the field of crop protection.