查看文章

Due to the increased development of resistance of vectors against synthetic insecticides and chemical drugs, plant based insecticides serve as promising biocontrol agents for effective vector control. Green approach for the synthesis of nanoparticles has been attained using environmentally safe, non-toxic plant extracts. The present study was aimed to investigate the potent larvicidal activity of silver nanoparticles (AgNPs) produced by Derris trifoliata leaf extract in relation to the various concentrations of methanol and chloroform extracts for 24 h against 3rd and 4th instar larvae of Aedes aegypti. AgNPs were synthesized using D. trifoliata leaf extract as reducing and stabilizing agent. Synthesized AgNPs were characterized by UV–Vis spectroscopy, FTIR spectroscopy, SEM, EDX, XRD and HRTEM. The size of AgNPs as estimated from the full width at half-maximum of (200) peak of silver was 16.13 nm, the average …