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Abstract
The sweetpotato whitefly, Bemisia tabaci (Gennadius), is a key pest of vegetable crops in Georgia. Currently, we suspect that insecticide resistance to the insecticides, cyantraniliprole and pyriproxyfen is reducing control levels by these products in the Southeastern USA. As insecticide efficacy/lethality declines, the whitefly population experiences more sublethal effects on reproduction. A common method to quantify these sublethal effects is life table analysis. We tested sublethal concentrations of cyantraniliprole and pyriproxyfen on the host settling behavior, oviposition, survival of different instars of nymphs, and adult emergence on a population of Georgia whiteflies, one relatively resistant to insecticides. We found reduced reproduction with the LC10 of both insecticides, but a significant stimulation of oviposition with the low rate of pyriproxyfen.