Abstract
This study aimed to assess the phyto-synthesizing potential of Tarenna asiatica methanol leaf extract as well as its larvicidal and pupicidal potential against Aedes aegypti larvae. According to the findings of this study, the methanol leaf extract of T. asiatica has the potential to synthesize zinc oxide nanoparticles from zinc acetate dehydrate. Standard analytical techniques such as UV–visible spectrophotometer, Fourier-transform infrared spectroscopy, X-ray Diffraction analysis, Scanning Electron Microscope, and Energy Dispersive X-Ray were used to characterize the phyto-synthesized nanoparticles. The zinc oxide nanoparticles synthesized ranged in size from 22.35 to 31.27 nm and was spherical in shape. These nanoparticles demonstrated excellent larvicidal activity against Aedes aegypti larvae in the second, third, and fourth in stars, as well as significant pupicidal activity. These findings suggest that the methanol leaf extract of T. asiatica synthesized zinc oxide nanoparticles, which could be used to develop mosquito repellents.
•Aqueous leaf extract of T. asiatica has the potential to synthesize Zinc oxide NPs.•Size and shape of the Zinc oxide NPs were 22.35 nm and spherical respectively.•Zinc oxide NPs has great larvicidal activity on all stage of Ae. aegypti larvae.•Zinc oxide NPs also has excellent pupicidal activity against Ae. aegypti pupa.•T. asiatica synthesized zinc oxide NPs may be useful to develop insect repellent.