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Insecticide cross resistance in the western flower thrips: physiological mechanisms and IPM strategies


Summary of Research Progress To Date. This was the first year of funding for our project and here we report data collected from July 1, 2011 to December 31, 2011. In order to test the hypothesis that one mechanism of insecticide resistance in the western flower thrips (WFT) is via the efflux transporter pathway, we first established a bioassay protocol for testing commonly used insecticides and determining the LD50 for each. We have successfully bioassayed the following insecticides: Assail, Capture, Danitol, Pylon, Warrior II, Movento, and Dimethoate (Figures 1 & 2) along with three control treatments (Figure 3). We specifically tested the inhibition of the efflux transporter pathway with the chemical Verapamil in combination with Assail (Figure 2).

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Keywords: ICFG Hill 2011-2012 Midterm Report

Libraries: Floriculture

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