Field evaluation of efficacy of some botanical dust against rice bug (Leptocorisa oratorius Fabr.)
DOI:
https://doi.org/10.48165/Keywords:
Neem seed kernel, neem leaf, soapnut, dust, malathion, multani powder and rice bugAbstract
Efficacy of neem (Azadirachta indica A.Jass), soap nut (Sapindus trifoliatus L.) and their formulations and Malathion as standard insecticide were evaluated against the rice bug (Leptocorisa oratorius Fabr.) during 2000-2001 on the basis of per cent reduction under field condition. The per cent reduction in number of rice bug adults due to neem seed kernel powder, neem seed kernel powder + multani powder, multani powder, neem leaf powder, neem leaf powder + multani powder, neem leaf powder + ash, soap nut kernel powder, soap nut kernel powder + multani powder tested as dust were found to be 24.44, 14.78, 5.65, 17.06, 11.88, 6.54, 18.18 and 15.01 respectively for exposure period of ten days. The order of efficacy of the botanicals and their formulations were malathion followed by neem seed kernel powder, soap nut kernel powder, neem leaf powder, neem seed kernel powder + multani powder, soap nut kernel powder + multani powder, neem leaf powder + multani powder, neem leaf powder + ash, multani powder for the exposure period of 3, 7 and 10 days respectively.
References
Pradhan, S., & Jotwani, M.G. (1963). The repellent properties of some neem products. Bulletin Regional Research Laboratories, 1, 149-51.
Ribeiro, A., Zani, C.L., Almoide Alves, T.M.D.E., & Mendes, N.M. Hamburger, M., & Hosettmanna, K. (1965). Molluscicidal saponins from the principle of Sapindus sp. Journal of Phytochemistry, 33, 177-80.
Sands, D.P.A. (1977). The biology and ecology of Leptocorisa (Hemiptera) in Papua New Guinea. Research Bulletin, 19, 104.
Saradama, K., Dale, D., & Nair, M.R.G.K. (1977). On the use of neem seed kernel powder as a protectant for stored paddy. Agricultural Research Journal of Kerala, 15, 102-03.
Singh, R.P., Kataria, P.K., & Khan, A. (1988). Activity of neem (Azadirachta indica) seed kernel extracts against the mustard aphid Lipaphis erysimi. Phytoparasitica, 16, 225-30.
Dresner, E. (1955). Present status of economic entomology in Indonesia. Food and Agricultural Organisation Plant Protection Bulletin, 4, 49-55.
Imti, B., & Zudir, B. (1997). Effect of neem (Melia azadirachta Linn) and Azadirachta indica on the incidence of Sitophilus oryzae (Linn.) (Coleoptera; Curculionidae) on stored paddy. Plant Protection Bulletin, 49, 44-47.
Jotwani, M.G., & Srivastava, A. (1981). Neem insecticides of the future III Chemistry, toxicology and future strategy. Pesticide, 12, 15.
Kumar, K.R., & Visalakhi, R. (1989). Relative toxicity of insecticides to rice bug, Leptocorisa acuta Thunb. Entomon, 14, 365-66.
Chitra, S., Bhusan, A., & Singh, B. (1993). Antifeedant activity of neem. Pestology, XIV(10), 11-16.
Ahmed, S. (1988). Potential of using neem tree (A. indica) for pest control and rural development. Neem Newsletter, 5, 49-55.
Anonymous. (1975). Annual Report. ICAR Research Complex for NEH Region, Barapani, Shillong, p. 114.
Sundar, M., Shyam Krishnayya, P.V., & Rao, A. (2000). Evaluation of lethal concentration of azadirachtin-based formulation for larvicidal and ovicidal effect against Spodoptera litura (Fabr.). Journal of Entomological Research, 24, 147-50.
Sugimoto, A.N. (1995). Damage of rice grains caused by rice bug (Leptocorisa oratorius Fabr.). JIRCAS Journal, 2, 13-17.
