Aphidicidal potential of green synthesized magnesium hydroxide nanoparticles using olea europaea leaves extract

摘要

Magnesium hydroxide (MgHNPs) nanoparticles were synthesized using Olea europaeaaqueous extract at ambient temperature and in one-single step. X-ray diffraction (XRD) analysis showed that synthesized MgHNPs have spherical shape with an average size diameter 40nm. Fourier transform infrared (FT-IR), scanning electron microscopy (SEM) and UV-vis spectrophotometry were used to characterize the synthesized magnesium hydroxide nanoparticles. This study determined the mortality efficacyof different concentrations of the synthesized MgHNPs against early and late nymphal instars of the green peach aphid. There were significant differences in the aphid mortalities between the different concentrations of the MgHNPs nanoparticles. In addition, the differences between the different concentrations and the control were significantly obvious.