Toxicity of insecticide-bait mixtures to insecticide resistant and susceptible western corn rootworms (Coleoptera: Chrysomelidae)

Srinivas Parimi, Lance J. Meinke, Timothy M. Nowatzki, Laurence D. Chandler, B. Wade French, Blair D. Siegfried

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Organophosphate resistant and susceptible populations of the western corn rootworm, Diabrotica virgifera virgifera LeConte. were subjected to adult feeding bioassays with different combinations of insecticide and a cucurbitacin bait. Five technical grade insecticides (methyl-parathion, carbaryl, fipronil, bifenthrin and indoxacarb) were used in combination with Invite EC™ as the feeding stimulant. Differences in susceptibility to the insecticide/bait combinations were observed among the resistant and susceptible populations for methyl-parathion and carbaryl. Susceptibility to fipronil, bifenthrin and indoxacarb was similar among the resistant and susceptible populations. Assays in which response to the insecticide/bait combination was compared with the bait alone indicated that methyl-parathion and bifenthrin were deterrent when compared to other treatments. These results suggest that the efficacy of Invite as a feeding stimulant in combination with certain insecticides may be compromised by previously identified resistance and by insecticides that antagonize the feeding stimulation of the cucurbitacin bait.

Original languageEnglish (US)
Pages (from-to)781-786
Number of pages6
JournalCrop Protection
Volume22
Issue number5
DOIs
StatePublished - Jun 2003

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

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