摘要
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A study was conducted to evaluate the effectiveness of selected insecticides, in conjunction with a commercially available natural enemy (<i>Chrysoperla carnea</i>) in suppressing the azalea lace bug (<i>Stephanitis pyrioides</i>)...
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A study was conducted to evaluate the effectiveness of selected insecticides, in conjunction with a commercially available natural enemy (<i>Chrysoperla carnea</i>) in suppressing the azalea lace bug (<i>Stephanitis pyrioides</i>). The insecticides acephate and imidacloprid, an insecticidal soap (M-PedeReg.), horticultural oil (Suffoil), a biopesticide (Tick Ex containing <i>Metarhizium anisopliae</i>) and water check were chosen as treatment materials. These were each applied individually and in combination with green lacewing larvae, giving a total of 12 treatments. There were no significant differences among pre-treatment counts. Significant differences among treatments were observed for both lace bug adults and nymphs in the post-treatment counts. Treatments imidacloprid, acephate + green lacewing, and soap + green lacewing resulted in significantly lower numbers of lace bug nymphs relative to the water control. These same 3 treatments plus treatments acephate and biopesticide (<i>Metarhizium</i>) alone, however, application of insecticidal soap (nymphs) and oil (adults) benefitted by the addition of the predatory green lacewing larvae.
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