Toxicity of Some Insecticides against Thrips Infesting Tomato

Authors

  • Timmanna Department of Entomology, University of Agricultural Sciences, Bengaluru 560065, Karnataka
  • Mohan I Naik Department of Entomology, University of Agricultural Sciences, Bengaluru 560065, Karnataka
  • Jamuna B Pesticide Residue Laboratory, University of Agricultural Sciences, Raichur 584102, Karnataka
  • Ravichandra N G Department of Plant Pathology, University of Agricultural Sciences, Bengaluru 560065, Karnataka

DOI:

https://doi.org/10.55446/IJE.2021.313

Keywords:

Tomato, thrips, tospoviruses, vectors, Thrips palmi, Scirtothrips dorsalis, insecticides, bioassay, LC50, spinosad, cyantraniliprole, diafenthiuron, imidacloprid, fipronil, dimethoate

Abstract

Bean dip bioassay was performed with six insecticides on the mortality response in tomato thrips- Thrips palmi Karny and Scirtothrips dorsalis Hood. The LC50 values ranged from 1.591 to 17.018 ppm, and spinosad with the least LC50 value of 1.591 ppm at 95% confidence limit was the most toxic. It was followed by cyantraniliprole (2.425 ppm), diafenthiuron (2.396 ppm), imidacloprid (5.110 ppm), fipronil (13.560 ppm) and dimethoate (17.018 ppm). Thus, spinosad, diafenthiuron and cyantraniliprole were observed to be more toxic.

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Published

2022-08-08

How to Cite

Timmanna, Naik, M. I. ., B, J. ., & N G, R. . (2022). Toxicity of Some Insecticides against Thrips Infesting Tomato. Indian Journal of Entomology, 84(3), 702–703. https://doi.org/10.55446/IJE.2021.313

Issue

Volume 84, Issue 3, September 2022

Section

Research Communications
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