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Antifeedant and Growth Inhibitory Activities of ＂Syzygium lineare＂ Wall (Myrtaceae) Against ＂Spodoptera litura＂ Fab (Lepidoptera: Noctuidae)
並列摘要
Antifeedant and grow th inhibitory activities of hexane, diethyl ether, dicholoromethane and ethyl acetate crude extracts of ＂Syzygium lineare＂ leaves were tested against fourth instar larvae of ＂Spodoptera litura＂. All the crude extracts showed antifeedant activity in a dose dependent manner. Significant antifeedant activity was found only in ethyl acetate extract. Bioctive ethyl acetate extract was subjected to fractionation using silica gel column chromatography. Seven fractions were obtained. Highest antifeedant activity (91.58%) and larval deformity were observed in sixth fraction. Third fraction showed high pupal, adult deformities and decreased adult emergence (30.2%). This plant has the potential to serve as an alternate biopesticide in the management of Lepidopteron pests.
延伸閱讀
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