Abstract
Mosquitoes are the most important group of insects in terms of public health importance, which transmit seriousdiseases. Vector control is a major challenge now a-days when they became resistance against commonly availableinsecticides and an adverse effect on non-target organisms and environment. Plants are potential source of bioactiveagents which can be used in vector control and phytochemicals may serve as appropriate alternative to syntheticinsecticides. The present work evaluated the mosquito larvicidal, pupicidal potential of ethanol leaf extract of Millingtoniahortensis against the larval (I-IV) and pupal stages of Aedes aegypti. The larvicidal and pupicidal assay test are carried out theinstructions of WHO guidelines. The data were subjected to Finney’s method of probit analysis. The LC50,90 /24,48hours values of ethanol leaf extract of M. hortensis to I instar larvae was 0.032 0.038; 0.021 0.031 % and this was found togradually increase with the age of larvae. Pupae showed the highest resistance to the ethanol leaf extract of M. hortensis asevident from the relatively higher LC50,90 /24,48 hours values 0.068, 0.071; 0059, 0.069 %. Therefore, ethanolic leafextract of M. hortensis can be used as alternative to synthetic larvicides and it may become an important tool in mosquitocontrol programs.
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