Journal
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
Volume 149, Issue -, Pages 26-36Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.pestbp.2018.05.005
Keywords
Trichoderma viride; Mycogenic synthesis; TDNPs; Helicoverpa armigera; Eudrilus eugeniae
Categories
Funding
- Department of Science & Technology, Science & Engineering Research Board (SERB), New Delhi, India [PDF/2016/000496]
Ask authors/readers for more resources
The control of agricultural pests through eco-friendly nanopesticides is a challenge of crucial environmental importance nowadays. The current study was aimed to discover a novel biopesticides through Trichoderma viride mediated synthesis of titanium dioxide nanoparticles (TDNPs). The main chemical and physical features of the TDNPs were assessed by Fourier transform infrared (FT-IR), X-ray diffraction (XRD), energy dispersive X-ray (EDX) and size distribution and shape of the NPs studied through the scanning electron microscope (SEM), high-resolution transmission electron microscope (HR-TEM) and dynamic light scattering (DLS). The extracellular synthesized nanoparticles were evaluated for their larvicidal, antifeedant and pupicidal activities against Helicoverpa armigera. TDNPs exhibited highest mortality rate on first (100%), second (100%) and third (92.34%), instar larvae of H. armigera at 100 ppm. The detoxifying enzymes such as, beta-glucosidase and carboxylesterase were reduced whereas glutathione S-transferase increased during the treatment of TDNPs against H.armigera at 100 ppm. No toxic effects were found on Eudrilus eugeniae filter paper and artificial soil assays treated with TDNPs at 100 ppm. However, cypermethrin was toxic to earthworms after 72h treatment. Therefore, TDNPs could act as significant inhibitors on the development of H. armigera, although, no adverse effect was found on earthworms.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available