Pesticidally active diazine-bisamide compounds

A compound of the formula I

• wherein
• R1 is hydrogen, C1-C6alkyl, C1-C6cyanoalkyl, aminocarbonylC1-C6alkyl, hydroxycarbonylC1-C6alkyl, C1-C6nitroalkyl, trimethylsilaneC1-C6alkyl, C1-C3alkoxy-C1-C6alkyl, C1-C6haloalkyl, C2-C6alkenyl, C2-C6haloalkenyl, C2-C6alkynyl, C2-C6haloalkynyl, C3-C4cycloalkylC1-C2alkyl-, C3-C4cycloalkylC1-C2alkyl-wherein the C3-C4cycloalkyl group is substituted with 1 or 2 halogen atoms, oxetan-3-yl-CH2—, C1-C6alkylcarbonyl, C1-C6alkoxycarbonyl, phenyloxycarbonyl, benzyloxycarbonyl, benzyl or benzyl substituted with 1 to 3 substituents independently selected from halogen, C1-C6alkoxy and C1-C6haloalkyl;
• R2a is hydrogen, C1-C3alkyl, C1-C3haloalkyl, C1-C3haloalkylsuflanyl, C1-C3alkoxy, C1-C3haloalkoxy, halogen, NO2, SF5, CN, C(O)NH2, C(O)OH, C(S)NH2, C3-C6cycloalkyl, C3-C6cycloalkyl substituted with one to three substituents independently selected from Rx, C3-C6cycloalkylcarbonyl, phenyl, phenyl substituted with one to three substituents independently selected from Rx, heteroaryl, heteroaryl substituted with one to three substituents independently selected from Rx, OR6, piperidin-2-one-1-yl, piperidin-2-one-1-yl substituted with one to two substituents independently selected from Rx, pyridin-2-one-1-yl, pyridin-2-one-1-yl substituted with one to two substituents independently selected from Rx, azetidin-1-yl, azetidin-1-yl substituted with one to two substituents independently selected from Rx pyrrolidin-1-yl, pyrrolidin-1-yl substituted with one to two substituents independently selected from Rx, C3-C6cycloalkylC1-C4alkyl, C3-C6cycloalkylC1-C4alkyl substituted with one to two substituents independently selected from Rz;
• C3-C6cycloalkylC1-C3alkoxy, C3-C6cycloalkylC1-C3alkoxy substituted with one to two substituents independently selected from Rx, C1-C5cyanoalkyl, C1-C5cyanoalkoxy, C1-C4alkylsulfanyl, C1-C4alkylsulfanyl substituted with one to three substituents independently selected from Rx, C1-C4alkylsulfonyl, C1-C4alkylsulfonyl substituted with one to three substituents independently selected from Rx, C1-C4alkylsulfinyl, or C1-C4alkylsulfinyl substituted with one to three substituents independently selected from Rx;
• R2b is hydrogen, C1-C3alkyl, C1-C3haloalkyl, C1-C3haloalkylsuflanyl, C1-C3alkoxy, C1-C3haloalkoxy, halogen, NO2, SF5, CN, C(O)NH2, C(O)OH, C(S)NH2, C3-C6cycloalkyl, C3-C6cycloalkyl substituted with one to three substituents independently selected from Rx, C3-C6cycloalkylcarbonyl, phenyl, phenyl substituted with one to three substituents independently selected from Rx, heteroaryl, heteroaryl substituted with one to three substituents independently selected from Rx, OR6, piperidin-2-one-1-yl, piperidin-2-one-1-yl substituted with one to two substituents independently selected from Rx, pyridin-2-one-1-yl, pyridin-2-one-1-yl substituted with one to two substituents independently selected from Rx, azetidin-1-yl, azetidin-1-yl substituted with one to two substituents independently selected from Rx pyrrolidin-1-yl, pyrrolidin-1-yl substituted with one to two substituents independently selected from Rx, C3-C6cycloalkylC1-C4alkyl, C3-C6cycloalkylC1-C4alkyl substituted with one to two substituents independently selected from Rz;
• C3-C6cycloalkylC1-C3alkoxy, C3-C6cycloalkylC1-C3alkoxy substituted with one to two substituents independently selected from Rx, C1-C5cyanoalkyl, C1-C6cyanoalkoxy, C1-C4alkylsulfanyl, C1-C4alkylsulfanyl substituted with one to three substituents independently selected from Rx, C1-C4alkylsulfonyl, C1-C4alkylsulfonyl substituted with one to three substituents independently selected from Rx, C1-C4alkylsulfinyl, or C1-C4alkylsulfinyl substituted with one to three substituents independently selected from Rx;
• A is N or C—R2c;
• R2c is hydrogen, halogen, C1-C3alkyl, C1-C3haloalkyl, C1-C3alkoxy, or C1-C3haloalkoxy;
• R3 is C1-C3alkyl or C1-C3haloalkyl;
• R4a is selected from the group consisting of hydrogen, C1-C6alkyl, and C1-C6haloalkyl;
• R4b is selected from the group consisting of hydrogen, C1-C6alkyl, C1-C6haloalkyl, C3-C6cycloalkyl, C3-C6cycloalkyl substituted with 1 to 3 substituents independently selected from R6, C2-C6alkenyl, C2-C6haloalkenyl, C2-C6alkynyl, C1-C3alkoxyC1-C4alkyl-, cyanoC1-C6alkyl-, phenyl, phenyl substituted with 1 to 3 substituents independently selected from R7, phenylC1-C2alkyl-, phenylC1-C2alkyl-substituted with 1 to 3 substituents independently selected from R8, heterocyclyl, heterocyclyl substituted with 1 to 3 substituents independently selected from R9, heterocyclylC1-C2alkyl-, heterocyclylC1-C2alkyl-substituted with 1 to 3 substituents independently selected from R10, heteroaryl, heteroaryl substituted with 1 to 3 substituents independently selected from R11, heteroarylC1-C2alkyl-, heteroarylC1-C2alkyl-substituted with 1 to 3 substituents independently selected from R12, and oxetanyl;
• or
• R4a and R4b together with the nitrogen atom to which they are attached form a 4- to 6-membered heterocyclyl, which optionally comprises 1 or 2 additional heteroatoms independently selected from N, O and S(O)r, and wherein said heterocyclyl moiety is optionally substituted by 1 or 2 substituents independently selected from R13, and r is 0, 1 or 2;
• R5a and R5b are, independently of each other, selected from hydrogen, halogen, CN, C1-C3alkyl, C1-C3haloalkyl, C3-C4cycloalkyl, C1-C3alkoxy, and C1-C3haloalkoxy;
• R6 is independently selected from cyano, OH, halogen, oxo (═O), C1-C3alkyl, C1-C3haloalkyl, and C1-C3alkoxy;
• R7 is independently selected from cyano, OH, halogen, C1-C3alkyl, C1-C3haloalkyl, C1-C3alkoxy and C1-C3haloalkoxy;
• R8 is independently selected from cyano, OH, halogen, C1-C3alkyl, C1-C3haloalkyl, C1-C3alkoxy and C1-C3haloalkoxy;
• R9, independent of the heterocyclyl group, is independently selected from cyano, OH, halogen, oxo (═O), C1-C3alkyl, C1-C3haloalkyl, and C1-C3alkoxy;
• R10, independent of the heterocyclylC1-C2alkyl-group, is independently selected from cyano, OH, halogen, oxo (═O), C1-C3alkyl, C1-C3haloalkyl, and C1-C3alkoxy;
• R11, independent of the heteroaryl group, is independently selected from cyano, OH, halogen, C1-C3alkyl, C1-C3haloalkyl, C1-C3alkoxy and C1-C3haloalkoxy;
• R12, independent of the heteroarylC1-C2alkyl-group, is independently selected from cyano, OH, halogen, C1-C3alkyl, C1-C3haloalkyl, C1-C3alkoxy and C1-C3haloalkoxy;
• R13 is independently selected from cyano, OH, halogen, oxo (═O), C1-C3alkyl, C1-C3haloalkyl, and C1-C3alkoxy;
• Rx is independently selected from halogen, C1-C3alkyl, C1-C3haloalkyl, C1-C3alkoxy, C1-C3haloalkoxy, NO2, SF5, CN, C(O)NH2, C(S)NH2, C1-C4haloalkylsulfanyl, C1-C4haloalkylsulfinyl, C1-C4haloalkylsulfonyl, C1-C4alkylsulfanyl, C1-C4alkylsulfinyl and C1-C4alkylsulfonyl;
• and
• Rz is independently selected from oxo, halogen, C1-C3 alkyl, C1-C3haloalkyl, C1-C3alkoxy, C1-C3haloalkoxy and CN;
• or an agrochemically acceptable salt, stereoisomer, enantiomer, tautomer and N-oxide of the compound of formula I.