Larvicidal Potential of Nine Common Medicinal Plants of Tamilnadu, India

Abstract

Mosquito are one of the most disturbing and blood sucking organisms that disturbs Homosapiens. Mosquito species included in the genera Anopheles, Aedes and culex are vectors for the various disease pathogens like malaria, dengue fever, yellow fever, encephalitis etc., for control of larval stages of mosquito herbal plants extracts are being tried. Nine medicinal plants extracts were collected dried and extracted with ethanol and used for the present study. The successful attempt is made to kill the larvae the premature stage of mosquitoes by using safe and socio-economical herbal plant mixtures. Azadirachta indica+Mentha spicata+ Coriandrum satium, Azadirachta indica + Ocimum tenuiflorum + Lawsonia inermis and Ocimum tenuiflorum +solanum procumbens +Phyllanthus niruri showed highest larvicidal activity. The medicinal plants were easily biodegradable than the synthetic insecticides, the plant products are less hazardous, they afford a rich store house of chemicals of diverse biological activity