A compound of the formula Iwhere, for example, W, X and Y are each CH；R1 and R6, independently of each other, are for example, selected from the group consisting of H, C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C1-C6-alkoxy, C3-C8-cycloalkyl, R7C(=O), and a ring system；provided that at least one of R1 and R6 is a- partially or fully unsaturated ring system containing in at least one ring in the ring system at least one hetero atom selected from N, O and S, which ring system is bound (i.e. through the N bonded to R1 and R6 in formula I) either directly or via a a C1-C6-alkylene group to the remainder of the compound,- a ring system having a 5- to 14-membered bicylic ring which may be unsubstituted or be substituted with 1, 2 or 3, independently of one another, radicals selected from halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy and C1-C6-haloalkoxy, orR2 is, for example,H, halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy or C1-C6-alkoxy-C1-C6-alkoxy,and/or salts thereof； and their use as as pesticidal agents.
