3 research outputs found
Effect of Calotropis procera (Aiton) Dryand. based zinc oxide nanoparticles on the cotton pest Spodoptera litura Fab.
No full text224-229Major loss in agricultural crops is caused by insect pests. In India,
various synthetic insecticides are used against pests. These are much
expensive and cause environmental hazards. The nanoparticles, as an
alternative approach is gaining considerable interest in this field. In the
present study, we explored the biological synthesis of zinc oxide
nanoparticles using Giant milkweed, Calotropis procera (Aiton)
Dryand. and its effects on the tobacco cutworm, Spodoptera litura. The
reduction of zinc ions (Zn2+) to zinc nanoparticles (ZnO NPs) was
prepared by mixing 50 g of C. procera leaves with 100 mL of single
distilled water in a 250 mL glass beaker. To synthesize nanoparticles,
50 mL of C. procera leaf extract was taken using a stirrer-heater and 5 g
of zinc oxide was added at 60ºC, boiled, then kept in a hot air oven at
70ºC for 24 h. Finally, the obtained light yellow coloured powder was
carefully collected and characterized using X-ray diffraction (XRD)
analysis. The results revealed that the biologically synthesized zinc
oxide nanoparticles pesticide was highly effective against the pest. The
weight of the pest decreased from low concentration to high
concentration. It is concluded that the Calotropis Procera based zinc
oxide nanoparticles could be used for the control of Spodoptera litura
CALOTROPIS PROCERA LEAF EXTRACT-BASED ZINC OXIDE NANOPARTICLES SYNTHESIS AND ANTIMICROBIAL STUDY
No full textCalotropis procera belonging to the family Asclepiadaceae (milkweed family) was employed in this study for the green synthesis of zinc oxide nanoparticles (ZnO NPs). These nanosized particles were characterized using XRD, UV-Vis spectroscopy, FT-IR, and light microscopy. Biosynthesis of ZnO NPs was evaluated against major human pathogenic organisms both bacteria and E.coli, E. fecalicus, Klebsiella sp, Salmonella sp, streptococcus pyogens, Staphylococcus aureus, Proteus Sp, Pseudomonas sp, and fungal pathogen like candida Albicans. There was a considerable rate of antibacterial as well as fungicidal nature of ZnO NPs against bacteria and fungi at higher concentrations of nanoparticles. The present work also showed that there was a significant increase in seed germination and growth rate when exposed to ZnO NP. An attempt made to study pest control revealed that higher concentrations and long-term exposure to nano-particles caused weight loss in Spodoptera litiva pest. These considerable properties of ZnO NPs can have a tremendous impact on exploitation for pest management and ensure high crop yield. And also, an attempt was made to evaluate the self-cleaning performance of ZnO NPs of some stains like oil, coffee, and tomato, and found ZnO NPs were the major factor for the decomposition of satins when compared with the untreated fabrics
Effect of Calotropis procera (Aiton) Dryand.based zinc oxide nanoparticles on the cotton pest Spodoptera litura Fab.
Get PDFMajor loss in agricultural crops is caused by insect pests. In India, various synthetic insecticides are used against pests. These are much expensive and cause environmental hazards. The nanoparticles, as an alternative approach is gaining considerable interest in this field. In the present study, we explored the biological synthesis of zinc oxide nanoparticles using Giant milkweed, Calotropis procera (Aiton) Dryand. and its effects on the tobacco cutworm, Spodoptera litura. The reduction of zinc ions (Zn2+) to zinc nanoparticles (ZnO NPs) was prepared by mixing 50 g of C. procera leaves with 100 mL of single distilled water in a 250 mL glass beaker. To synthesize nanoparticles, 50 mL of C. procera leaf extract was taken using a stirrer-heater and 5 g of zinc oxide was added at 60ºC, boiled, then kept in a hot air oven at 70ºC for 24 h. Finally, the obtained light yellow coloured powder was carefully collected and characterized using X-ray diffraction (XRD) analysis. The results revealed that the biologically synthesized zinc oxide nanoparticles pesticide was highly effective against the pest. The weight of the pest decreased from low concentration to high concentration. It is concluded that the Calotropis Procera based zinc oxide nanoparticles could be used for the control of Spodoptera litura
