Abstract:Margosa oil (Azadirachta indica) extract as biopesticides were examined against Culex pipiens mosquito larvae under laboratory conditions to detect the toxicity of margosa oil extract and study the histopathological alterations in the midgut of treated larvae. The inhibition influence of plant extract was assessed by determining the mortality of larvae post-treatment with LC50 value11.59 ppm. The crude extract of margosa oil recorded 90% mortality for Cx. pipiens at 80 ppm. In contrast, the lowest concentratio… Show more
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