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LARVICIDAL EFFICACY OF THREE AROMATIC PLANTS AGAINST DENGUE VECTOR, AEDES AEGYPTI

Aedes aegypti is the main carrier for viruses that cause dengue, dengue hemorrhagic and yellow fevers. Insecticide use to control this vector has led to the development of mosquito resistance, environmental pollution, and undesirable effects on non-target organisms.use of environment friendly and biodegradable natural insecticides of plant origin have received renewed attention as agents for vector control. This quality increased the demand of plant extracts. The present study was conducted to determine the effectiveness of leaf extracts of against dengue and vector The larvicidal activity was determined against the early 4th instar larvae at concentrations of 500,1000 ppm. Larval mortality of was observed against petroleum ether, methanol and ethyl acetate extracts of and after 24h and 48 h. extract in ethyl acetate and extract in petroleum ether provided highest mortality rate of 69.9% and 69.6% respectively Petroleum ether extract of shows the least variation in mortality between 500ppm and 1000ppm at 24 hr 





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