Vol. 10, Issue 12 (2021)

Author(s):
Manoj H and RR Patil

Abstract:
The application of nanotechnology in crop protection holds a significant role in management of insects and pests. Nanoparticles are highly stable and can be successfully employed in production of Nano capsules for delivery of pesticides, fertilizers and other agrochemicals. Nanoparticles display slow release of encapsulated functional molecules and reduce its frequent applications. Red spider mite, Tetranychus urticae Koch (Tetranychidae), is a major sucking pest on vegetables in Karnataka, India. One of the major obstacles in the control of T. urticae is its ability to rapidly develop resistance to many important acaricides, even after only a few applications. Green nanotechnology is emerging as a rapidly growing field with its application in science and technology for manufacturing new materials at the nanoscale. We have synthesized soybean based silver NPs and characterized them by UV–Visible spectroscopy, PSA and SEM. Spiromesifen 240 SC @ 2ml/l was used as standard check. For comparison purposes, plant extract (soybean seed extract) and precursor (AgNO₃) were used was prepared and tested on deutonymph (T. urticae). Soybean AgNPs of different concentrations, namely, 1000, 750, 500, 250 and 100ppm, were tested on mite.