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Salannobutyrolactone and its deacetylderivative were tested for insect antifeedant and growth regulatory activities against the tobacco cutworm, Spodoptera litura. Salannobutyrolactone was the most effective antifeedant. Desacetylsalannobutyrolactone increased larval duration and larval mortality.
The hexane extract and ethyl acetate soluble fraction of methanolic extract of the fruit pulp of Momordica dioica exhibited moderate and concentration dependent antifeedant activity against Spodoptera litura.
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