A compound of general formula I wherein L 1 is selected from pyridine, thiazole, pyrimidine, pyridazine, pyrazine; L 2 is selected from bivalent residues of pyridine, thiene, furane, oxazole, thiazole, isothiazole, isoxazole, oxadiazole, thiadiazole, triazole, tetrazole, imidazole, pyrrole, dihydropyrane, dihydrofurane, pyrimidine, triazine, tetrazine, benzene, cyclohexane, cyclohexene; each of R 1 and R 2 is independently selected from the group consisting of halogen, cyanide, amino, hydrocarbylamino, dihydrocarbylamino, nitro, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C1-C6 alkoxy, C1-C6 alkylthio, acyl, alkylcarbamoyl, carbamoyl, alkylthiocarbamoyl, thiocarbamoyl, alkylsulfonyl, sulfonamido, N-alkylsulfonamido, N,N-dialkylsulfonamido, carboxyl, alkyloxycarbonyl, amide, N-alkylamide, N,N-dialkylamide, thioamide, N-alkylthioamide, N,N-dialkylthioamide, oxime, wherein each of these substituents may optionally be further substituted by one or more substitutents selected from the group consisting of halogen, trifluoromethyl, cyanide, C1-C6 alkyl, C1-C6 alkoxy, C1-C6 alkylthio, hydroxy, amino, hydrocarbylamino, dihydrocarbylamino; wherein at least one R 1 and/or R 2 is present, and wherein the said at least one R 1 and/or R 2 is independently selected from halogen, trifluoromethyl, cyanide or alkoxy; each of R 3 and R 4 is independently selected from the group consisting of H, OH, C1-C6 alkyl, wherein each of these substituents may optionally be further substituted by one or more substitutents OH; or R 3 and R 4 together form a C1-C4 alkylidene or =O; each R 5 is independently selected from the group consisting of halogen, trifluoromethyl, cyanide; each R 6 is independently selected from the group consisting of 3 H, halogen, trifluoromethyl, cyanide, OH; each X is independently selected from C or N; each Y is independently selected from C, O, S, N; wherein when Y is O or S, R 3 and R 4 are not present, and when Y is N, R 4 is not present; m, n, o, q are independently selected from 0, 1 and 2; p is selected from 0, 1 and 2. L 1 is selected from pyridine, thiazole, pyrimidine, pyridazine, pyrazine; L 2 is selected from bivalent residues of pyridine, thiene, furane, oxazole, thiazole, isothiazole, isoxazole, oxadiazole, thiadiazole, triazole, tetrazole, imidazole, pyrrole, dihydropyrane, dihydrofurane, pyrimidine, triazine, tetrazine, benzene, cyclohexane, cyclohexene; each of R 1 and R 2 is independently selected from the group consisting of halogen, cyanide, amino, hydrocarbylamino, dihydrocarbylamino, nitro, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C1-C6 alkoxy, C1-C6 alkylthio, acyl, alkylcarbamoyl, carbamoyl, alkylthiocarbamoyl, thiocarbamoyl, alkylsulfonyl, sulfonamido, N-alkylsulfonamido, N,N-dialkylsulfonamido, carboxyl, alkyloxycarbonyl, amide, N-alkylamide, N,N-dialkylamide, thioamide, N-alkylthioamide, N,N-dialkylthioamide, oxime, wherein each of these substituents may optionally be further substituted by one or more substitutents selected from the group consisting of halogen, trifluoromethyl, cyanide, C1-C6 alkyl, C1-C6 alkoxy, C1-C6 alkylthio, hydroxy, amino, hydrocarbylamino, dihydrocarbylamino; wherein at least one R 1 and/or R 2 is present, and wherein the said at least one R 1 and/or R 2 is independently selected from halogen, trifluoromethyl, cyanide or alkoxy; each of R 3 and R 4 is independently selected from the group consisting of H, OH, C1-C6 alkyl, wherein each of these substituents may optionally be further substituted by one or more substitutents OH; or R 3 and R 4 together form a C1-C4 alkylidene or =O; each R 5 is independently selected from the group consisting of halogen, trifluoromethyl, cyanide; each R 6 is independently selected from the group consisting of 3 H, halogen, trifluoromethyl, cyanide, OH; each X is independently selected from C or N; each Y is independently selected from C, O, S, N; wherein when Y is O or S, R 3 and R 4 are not present, and when Y is N, R 4 is not present; m, n, o, q are independently selected from 0, 1 and 2; p is selected from 0, 1 and 2.