Effect of fipronil on bait formulation-based aversion in the German cockroach (Dictyoptera:Blattellidae)

We examined the effects of 3 active ingredients in baits containing glucose on a behaviorally resistant (glucose-averse, T-164) strain of Blattella germanica L. Baits with glucose and hydramethylnon or chlorpyrifos killed few T-164 individuals; however, fipronil-glucose baits killed 60% of the cockr...

Full description

Saved in:
Bibliographic Details
Published inJournal of economic entomology Vol. 92; no. 4; pp. 886 - 889
Main Authors Silverman, J, Liang, D
Format Journal Article
LanguageEnglish
Published 01.08.1999
Subjects
baits
behavioral resistance
Blattella germanica
chlorpyrifos
efficacy
glucose
hydramethylnon
insect control
insecticides
intake
mortality
toxicity
Online AccessGet more information

Cover

More Information
Summary:We examined the effects of 3 active ingredients in baits containing glucose on a behaviorally resistant (glucose-averse, T-164) strain of Blattella germanica L. Baits with glucose and hydramethylnon or chlorpyrifos killed few T-164 individuals; however, fipronil-glucose baits killed 60% of the cockroaches by day 14. Although ingestion levels were low, fipronil-glucose baits were consumed more than hydramethylnon or chlorpyrifos glucose baits by T-164 cockroaches. Fipronil bait was 17 and 29 times more toxic to the T-164 strain than hydramethylnon and chlorpyrifos, respectively. Despite aversion to a key bait component, low-level bait consumption of a highly active toxicant such as fipronil may to some degree override bait inert-based behavioral resistance mechanisms.
ISSN:0022-0493
1938-291X
DOI:10.1093/jee/92.4.886