Location: Stored Product Insect Research Unit
Title: Efficacy of chlorfenapyr against Tribolium castaneum and Tribolium confusum (Coleoptera: Tenebrionidae) adults exposed on concrete, vinyl tile, and plywood surfaces Author
Submitted to: National Entomological Society of America Annual Meeting
Publication Type: Abstract Only
Publication Acceptance Date: July 20, 2007
Publication Date: December 9, 2007
Citation: Arthur, F.H. 2007. Efficacy of chlorfenapyr against Tribolium castaneum and Tribolium confusum (Coleoptera: Tenebrionidae) adults exposed on concrete, vinyl tile, and plywood surfaces [abstract]. National Entomological Society of America Annual Meeting, San Diego, CA, December 9-12, 2007. Technical Abstract: The insecticidal pyrrol chlorfenapyr was applied to concrete, tile, and wood surfaces, at an application rate of 0.11 mgAI/cm2. Adult Tribolium castaneum (Herbst), the red flour beetle, and adult T. confusum (DuVal), the confused flour beetle, were exposed for 2 and 4 hours, removed, and held without food for 7 days post-exposure. All beetles survived the initial exposures, but survival of both species decreased during the 7-day holding period, with T. confusum being the more susceptible species. Survival was generally lower on concrete than on tile or plywood, and was greatly reduced on all three surfaces after 4 hours of exposure compared to 2 hours. Non-linear and linear regressions were fit to the data for both species.