Abstract
Abstract The sublethal effects of buprofezin, abamectin, and a plant-derived extract from aerial portions of Echinophora platyloba DC (Umbelliferae) on the mortality, developmental time, adult longevity, and fecundity of the parasitoid Encarsia formosa Gahan were studied. Laboratory bioassays determined that the median lethal concentrations (LC50) of abamectin, buprofezin, and the Echinophora platyloba extract were 724.2, 1,202.9, and 894.4 mg/l for larvae, 971.4, 1,380.2, and 1,287.0 mg/l for pupae, and 306.2, 3,309.1, and 831.7 mg/l for adults, respectively. Preadult development time was reduced following exposure to sublethal concentrations (LC30) of all insecticides (P 0.05). However, ...
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