The leaf extract of Acalypha ainifolai with diffent solvents-hexane,chlorofofm,ethyl acetate,acetone and methanol-were tesed for larvicidal activity against three important mosquitoes such as malarial vector,Anopheles stephensi,dengue vector,Aector aegypti and Bancroftian fillariasis vector, Culex quinquefasciatus.