Asian Journal of Agricultural Research1819-1894xxxx-xxxxKnowledgia Review10.3923/ajar.2020.34.40Hypericum hookerianum (Wight and Arn.) as a Potential Bio-Pesticide to Control Cotton Bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae)]]>MahendrakumarMani JeyasankarAlagarmalai ElumalaiKuppusamy 22020142Background and Objective: Cotton is a greatly valued commercial crop which finds heavy losses due to pests. The study aimed to assess the bio-pesticidal activity of Hypericum hookerianum (Wight and Arn.) against important field pest Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae). Materials and Methods: The present study, the methanol extract of Hypericum hookerianum was tested for their pesticidal activity against the important agricultural field pest, Cotton bollworm, Helicoverpa armigera. The methanolic leaf extract was evaluated at different concentrations against the pest by performing antifeedant(leaf disc choice assay), larvicidal and ovicidal activities. Results: The methanol extract showed a 90.0% feed deterrent activity with 96.43% larvicidal activity and 65.77% larval egg mortality. These findings show that the methanol extract of this plant exhibits great potential as a bio-pesticide against the selected field pest. Conclusion: This present finding gives a secure alternative to the currently used chemical pesticides by contributing to a sustainable farming method.]]>Aktar, M.W., D. Sengupta and A. Chowdhury,20092112Kaur, H. and H. Garg,2014pp: 187-230pp: 187-230Cespedes, C.L., M. Martinez-Vazqez, J.S. Calderon, J.R. Salazar and E. Arana,2001Spodoptetra frugiperda.]]>5695105Céspedes, C.L., P. Torres, J.C. Marı́n, A. Arciniegas, A.R. De Vivar, A.L. Pérez-Castorena and E. Aranda,20046519631975Boulamtat, R., S. Lhaloui, A. Sabraoui, K. El-Fakhouri, A. Oubayoucef, A. Mesfioui and M. El-Bouhssini,2019Mentha pulegium on chickpea pod borer Helicoverpa armigera (Lepidoptera: Noctuidae).]]>40151156Saeidi, K. and B. Hassanpour,2014Mentha piperita L. and Mentha pulegium L. essential oils on nutritional indices of Plodia interpunctella Hübner (Lepidoptera: Pyralidae).]]>461317Santana, O., M.F. Andrésb, J. Sanzc, N. Errahmanid, A. Lamiri and A. González-Colomab,2014911091114Darabi, K. and J. Khajehali,2017Mentha species and Cuminum cyminum L. on Anarta trifolii (Hufnagel) (Lepidoptera: Noctuidae).]]>2010971106Jeyasankar, A., S. Premalatha and K. Elumalai,2012Solanum pseudocapsicum (Solanaceae) against cotton bollworm, Helicoverpa armigera Hubner and armyworm, Spodoptera litura Fabricius (Lepidoptera: Noctuidae).]]>2981986Arivoli, S. and S. Tennyson,2013Spodoptera litura (Fab) (Lepidoptera: Noctuidae).]]>18796Isman, M.B., O. Koul, A. Luczynski and J. Kaminski,19903814061411Abbott, W.S.,192518265267Pavunraj, M., K. Baskar and S. Ignacimuthu,2012Melochia corchorifolia L. (Sterculiaceae) on feeding behavior of four lepidopteran pests.]]>75868Duraipandiyan, V., S. Ignacimuthu and M.G. Paulraj,2011Cassia fistula L.]]>18129133Gunderson, C.A., J.H. Samuelian, C.K. Evans and L.B. Brattsten,1985Spodoptera eridania (Lepidoptera: Noctuidae).]]>14859863Miyazawa, M., H. Watanabe and H. Kameoka,199745677679Pavlidou, V., L. Karpouhtsis, G. Franzios, A. Zambetaki, Z. Scouras and P. Mavragani-Tsipidou,2004Salvia fruticosa, and mint, Mentha pulegium, on Drosophila melanogaster and Bactrocera oleae(Diptera: Tephritidae).]]>213949Kong, D.G., Y. Zhao, G.H. Li, B.J. Chen, X.N. Wang et al.,2015164256264Paul, D. and M. Choudhury,2016Helicoverpa armigera (Hübner) larvae.]]>5447460