Comparative Studies on in- vitro Phytochemicals Analysis and Larvicidal Efficacy of Medicinal Plant Extracts against Culex quinquefasciatus

Abstract

Mosquitoes transmit human diseases, causing millions and millions of deaths every year Mosquito borne diseases are one of the most serious public health problems in the developing countries. It can be controlled by using repellent, causing larval mortality and the development of resistance to chemical insecticides resulting in rebounding vectorial capacity. Plants may be alternative sources of mosquito control agents. Medicinal plants extracts of Vitex negundo, Azadirachta indica and Eucalyptus tereticornis were tested for their larvicidal activity against Culex quinquefasciatus. There are four different solvents were used (Petroleum-ether, Ethanol, Acetone and Hexane extract) for the preparation of crude extracts from the plant leaves. The larval mortality of second and third instar larvae C. quinquefasciatus after 24 hour to 48 hour of treatment were observed separately in control,100, 200,300,400 and 500 ppm concentrations of the leaf extract. The seven different solvent extract of Vitex negundo showed good larvicidal activity.

Larvicidal Enzyme Inhibition and Repellent Activity of Red Mangrove Rhizophora mucronata (Lam.) Leaf Extracts and Their Biomolecules against Three Medically Challenging Arthropod Vectors

“…Mosquitoes are central to the spreading of many infections including dengue fever, malaria, yellow fever and lymphatic filariasis, especially in areas with ecosystems that favor their breeding [ 1 ]. Mosquitoes are the primary arthropod vectors of different blood borne illness that cause millions of mortalities per year in humans [ 2 ].…”

Distribution and Diversity of Mosquito Larvae from Kopargaon Teshil, Dist. Ahmednagar (M.S.) India

“…The Culex and Aedes mosquito breed in a small habitat but they have been not able to breed with Anopheles mosquito because of the temporary pools, gutters had very turbid water, while water storage tanks had clear water. Several mosquito species belonging to genera Anopheles, Culex and Aedes are vectors for the pathogens of various diseases like malaria, filariasis, Japanese encephalitis, dengue fever, dengue hemorrhagic fever and yellow fever [17] . During survey most of the collected mosquito larvae were important vectors for malaria, filariasis, chikungunya and dengue.…”

A Review on Some Traditional Medicinal Plants

“…The medicinal value of plants lies in some chemical active substances that produce define physiological action on the human body [8] . Plants are considered as a rich source of bioactive chemicals and they may be an alternative source of mosquito control agents [9] . Secondary metabolites or phytochemicals from plants have eminent pharmacological activities such as anti-oxidative, antiallergic, antibiotic, hypoglycaemic and anti-carcinogenic.…”