Evaluating Ecofriendly Botanicals of Barleria longiflora Linn. F. (Acanthaceae) against Armyworm Spodoptera litura Fab. and Cotton Bollworm Helicoverpa armigera Hübner (Lepidoptera: Noctuidae)
V. Chennaiyan, R. Sivakami, A. Jeyasankar
Annual Research & Review in Biology · pp. 1–9 · Published 14 May 2016
10.9734/ARRB/2016/23691Abstract
This study to investigate the crude extracts effect of Barleria longiflora against fourth instar larvae of Spodoptera litura and Helicoverpa armigera. Antifeedant, larvicidal, and the inhibitory activities of B. longiflora were observed with different solvent extracts of petroleum ether, chloroform and ethyl acetate. Significant effect has been observed in ethyl acetate extracts of B. longiflora compared with other solvent extract and control. Even though ethyl acetate extracts of B. longiflora showed higher percentage of antifeedant (79.40 and 77.36%) and larvicidal activities (70.96 and 68.70%) against S. litura and H. armigera,respectively. Percentage of deformed larvae, pupae and adults were high on ethyl acetate extract. Percentage of successful adult emergence was deteriorated by extract treated larvae. Preliminary phytochemical analysis showed the presence of Coumarin, saponins, steroids and tannins in ethyl acetate extract.
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