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Abstract

Novel substituted N-amino-1,2,4-triazinones of formula I ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.3 C.sub.6 cycloalkyl, C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.2 haloalkyl, phenyl, benzyl, phenethyl, phenproptyl, phenbutyl or phenpentyl, or a phenyl, benzyl, phenethyl, phenpropyl, phenbutyl or phenpentyl radical that is mono- or di-substituted by halogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.2 haloalkyl, methoxy and/or by ethoxy, R.sub.2 is hydrogen, C.sub.1 -C.sub.6 alkyl or C.sub.3 -C.sub.6 cycloalkyl, or is phenyl that is unsubstituted or substituted by C.sub.1 -C.sub.12 alkyl, halogen or by C.sub.1 -C.sub.12 haloalkyl, or R.sub.1 and R.sub.2 together form a saturated or unsaturated 3- to 7-membered carbocycle, R.sub.3 is hydrogen or C.sub.1 -C.sub.6 alkyl and Z is --N.dbd.CH-- or --NH--CH.sub.2 --, and their salts with organic or inorganic acids, processes and intermediates for their preparation, and their use in pest control and in pesticidal copositions that contain a compound of formula I as active ingredient are disclosed. The preferred field of application is the control of pests in and on animals and plants.

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