Press "Enter" to skip to content

Nanoinsecticidal effects of Zinc Oxide Nanoparticles on Rice weevil Sitophilus oryzae (L.), under laboratory conditions in stored wheat grains

Purva Mandal*, Seema Keshari, Rakhi Kumari
University Department of Zoology, Ranchi University, Ranchi, Jharkhand, India
Received : 17th June, 2022 ; Revised : 19th July, 2022

Abstract Sitophilus oryzae (L.) causes high risk to wheat seeds in storage such as weight loss, reduced nutrition value, less germination of grains. The excessive use of pesticides and chemical compounds has an adverse effect on environment. The nanoparticles have received much attention for controlling stored grain pests. Screening test was conducted to evaluate the effect of Zinc Oxide nanoparticles (ZnO NPs) at different doses 1000 ppm, 2000 ppm, 3000 ppm, 4000 ppm and 5000 ppm per 20 g wheat grains along with control on S. oryzae. The results clearly showed that ZnO NPs had adverse effect on the adults of S. oryzae. The results obtained indicated that the insects mortality (%) increased by increasing the level of concentration of ZnO NPs and the period of exposure and the seed weight loss decreased after 40 days of storage. Thus, the ZnO NPs are use as an alternative method as pesticides to control the S. oryzae insect pest because ZnO NPs are safe for human and for environment.

Key words: Zinc Oxide Nanoparticles, Sitophilus oryzae (L.), Wheat grains, Mortality (%), Weight loss (%).

Download pdf

Be First to Comment

Leave a Reply