Larvicidal efficacy of fabricated silver nanoparticles from Butea monosperma flower extract against dengue vector, Aedes aegypti

Development of resistance to synthetic pesticides by mosquitoes, environmental pollution, high operational cost and harmful effects on nontarget organisms had lead to the development of alternative approaches to synthetic pesticides in the vector control strategies. In this study the larvicidal efficacy of fabricated silver nanoparticles from the aqueous flower extract of Butea monosperma has been investigated against the juvenile stages of Aedes aegypti. The green synthesized silver nanoparticles were characterized using UV-Vis spectroscopy, Fourier Transform Infrared spectroscopy, X Ray Diffraction spectroscopy and Scanning Electron Microscopy. Bioassay test was carried out by following the procedure of WHO. Our findings indicate that the silver nanoparticles synthesized from aqueous flower extract of Butea monosperma possess effective larvicidal and pupicidal activity against Aedes aegypti. Hence Butea monosperma could be utilized for developing eco-friendly insecticide as an alternative to synthetic insecticides.