Larvicidal activity of neem and karanja oil cakes against mosquito vectors, Culex quinquefasciatus (Say), Aedes aegypti (L) and Anopheles stephensi (L.)
Autor(es): Shanmugasundaram, R.; Jeyalakshmi, T.; Dutt; Murthy, P. B.
Resumo: Larvicidal effect of neem (Azadirachta indica) and karanja (Pongamia glabra) oil cakes (individuals and combination) was studied against mosquito species. Both the oil cakes showed larvicidal activity against the mosquito species tested. The combination of neem and karanja oil cakes in equal proportion proved to have better effect than the individual treatments. The combination of the two oil cakes recorded an LC sub(95) of 0.93, 0.54 and 0.77% against the mosquitoes, Culex quinquefasciatus, Aedes aegypti and Anopheles stephensi respectively. The increase in efficacy of the combination treatment over individuals in all the mosquito larvae tested was found to range about 4 to 10 fold in terms of LC sub(50) and 2 to 6 fold in terms of LC sub(95).
Palavras-Chave: Insect larvae; Pesticides; Pest control; Toxicity tests; Disease transmission; Public health; Oil cake; Vectors; Leem; Culex quinquefasciatus; Aedes aegypti; Azadirachta indica; Anopheles tephensi; Pongamia
Imprenta: Journal of Environmental Biology, v. 29, n. 1, p. 43-45, 2008.
Descritores: Aedes aegypti - Transmission ; Aedes aegypti - Public health
Data de publicação: 2008
