Patent ID: 6150404
Filing Date: 2000-11-21
Classification: A01N

Abstract:
In a population of dipteran, homopteran, lepidopteran, blattarian, hymenopteran, hemipteran, isopteran, or coleopteran insects exhibiting resistance to a pyrethroid insecticide;a method of diagnosing whether the pyrethroid resistance results from a metabolically-based resistance mechanism;said method comprising exposing pyrethroid-resistant insects from the population to an effective amount of a compound selected from the group consisting of trans, 1R-fenfluthrin; cis, 1R-fenfluthrin; and cis, 1R-methylenedioxyphenyl-3-(2,2-dihalovinyl)-2,2-dimethylcyclopropanecarbox ylate; and observing the fraction of exposed insects that are killed by said exposing step;whereby the results of said diagnostic method indicate that a metabolic mechanism is primarily responsible for the resistance if at least a discriminatory percentage of the insects is killed by said exposing step; and that a mechanism other than a metabolic mechanism, either alone or in conjunction with a metabolic mechanism, is responsible for the resistance if less than a discriminatory percentage of the insects is killed by said exposing step.