Abstract

After the adoption of green revolution, India has The combined action of cypermethrin and methanolic extracts of Coriandrum sativum, Piper nigrum were observed for their larvicidal and pupicidal activites against Aedes aegypti. When analyzed individually, Cypermethrin were found to be most effectual against the first instar larvae of Aedes aegypti, followed by methanolic extracts of Piper nigrum, Coriandrum sativum being least effective. The LC50 values obtained with Cypermethrin and methanolic extracts of Piper nigrum, Coriandrum sativum against the first instar larvae were 0.61, 0.71 and 0.86%, respectively and the LC90 values were 1.32, 2.73 and 3.71% respectively. The combination of Cypermethrin and Coriandrum sativum was studied at mixed with Cypermethrin 0.5% and Coriandrum sativum 0.5, 1.0, 1.5, 2.0 and 2.5. Similar mixtures were also used for the combination of Cypermethrin and Piper nigrum. The Cypermethrin and Coriandrum sativum seed extract combination acted antagonistically. The combination of Cypermethrin and Piper nigrum seed extract acted synergistically against the target organisms at a first instar larvae, which showed the best results of: LC50 0.58 and LC90 2.40% at 24 hours, respectively. The present study will be helpful in developing in a commercial formulation for effective vector management. Dr. A. Noortheen | B. Govindarajan | Brabavathi C"Combined Larvicidal and Pupicidal Action of Coriandrum sativum, Piper nigrum and Synthetic Insecticide Cypermethrin Against the Dengue Fever Mosquito, Aedes Aegypti L." Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: http://www.ijtsrd.com/papers/ijtsrd14213.pdf http://www.ijtsrd.com/biological-science/zoology/14213/combined-larvicidal-and-pupicidal-action-of-coriandrum-sativum-piper-nigrum-and-synthetic-insecticide-cypermethrin-against-the-dengue-fever-mosquito-aedes-aegypti-l/dr-a-noortheen

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