Patent ID: 6025386
Filing Date: 2000-02-15
Classification: A01N

Abstract:
An insecticidal synergistic composition comprising:a) a synergistic effective amount of one or more N,N'-dibenzoyl-N'-tert-alkyl-hydrazines of the formula: ##STR2## wherein: i) R.sup.1, R.sup.4, and R.sup.5 are independently hydrogen, (C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4)alkoxy, or halo;ii) R.sup.2 and R.sub.3 are joined together with the benzoyl ring carbons to which they are attached to form a 5 or 6-membered carbocyclic, dioxolano, dioxano, oxano, or oxolano ring such that when in the form of a 5-membered ring R.sup.2 and R.sup.3 together is --A--CH.sub.2 --A.sup.1 --and when in the form of a 6-membered ring R.sup.2 and R.sup.3 together is --A--CH.sub.2 CH.sub.2 --A.sup.1 --, wherein A and A.sup.1 are independently --CH.sub.2 --or --O--; andiii) R.sup.6 is a (C.sub.4 -C.sub.10)alkyl group containing a tertiary carbon; andb) diethyl maleate;wherein the ratio of diethylmaleate to N,N'-dibenzoyl-N'-tert-alkyl-hydrazines is from 0.01:1 to 100:1 by weight.