Mosquitocidal properties of Solanum trilobatum L.(Solanaceae) leaf extracts against,three important human vector mosquitoes(Diptera:Culicidae)

Objective:To determine the larvicidal and pupicidal activites of Solanum trilobatum（S. trilobatum） leaf extracts against Aedes aegypti（Ae.aegypti）,Culex quinquefasciatus（Cx. quinquefasciatus） and Anopheles stephensi（An.stephensi）.Methods:The larvicidal and pupucidal was determined at five different concentrations of 50,100,150,200 and 250 ppm.Percentage of larval mortality was assessed after 48 h.Results:Methanol extracts of S.trilobatum was found to be more susceptible against the larvae of Ae.aegypti.Cx.quinquefasciatus and An.stephensi at 250 ppm with a LC50 value of 125.43,127.77 and 116.64 ppm respectively.Leaf methanol extracts of S.trilobatum also exhibited pupicidal and adult emergence properties.Conclusions:These results suggested that the leaf extracts of S.Irilobalum showed potential to be used as an ideal ecofriendly approach for the control of the Ae.Aegypti,Cx.quinquefasciatus and An.stephensi.