Efficacy of Acaricides against Red Spider Mite Tetranychus urticae Infesting Yard Long Bean

Authors

  • K. Rajashekharappa Department of Agricultural Entomology, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577204, Karnataka
  • S. Ambarish Department of Agricultural Entomology, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577204, Karnataka
  • Ramesh M. Maradi Department of Agricultural Entomology, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577204, Karnataka
  • S. Onkarappa Department of Agricultural Entomology, College of Agriculture, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga 577204, Karnataka

DOI:

https://doi.org/10.55446/IJE.2022.793

Keywords:

Cost economics, diafenthiuron 50WP, efficacy, spiromesifen 22.9SC, mite, Vigna unguiculata sesquipedalis, yield

Abstract

Field experiments were carried out at Zonal Agricultural and Horticultural Research Station, Navile, Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga, Karnataka India during kharif 2020 and 2021. A total of seven acaricides were evaluated, and the results revealed that spiromesifen 22.9SC @ 0.8 ml/ l was the most effective in reducing mites (87.21% reduction) followed by diafenthiuron 50WP @ 1.0 gm/ l (84.49%). Maximum marketable pod yield was obtained with spiromesifen 22.9SC (21.36 t/ ha) and it was closely followed by diafenthiuron 50WP (20.15 t/ha). Maximum cost benefit ratio was observed with these, and thus spiromesifen 22.9SC @ 0.8 ml/ l and diafenthiuron 50WP @ 1.0 g/ l can be recommended against mites in yard long bean.

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Published

2023-06-01

How to Cite

Rajashekharappa, K., Ambarish, S., Maradi, R. M., & Onkarappa, S. (2023). Efficacy of Acaricides against Red Spider Mite <i>Tetranychus urticae</i> Infesting Yard Long Bean. Indian Journal of Entomology, 85(2), 400–402. https://doi.org/10.55446/IJE.2022.793

Issue

Volume 85, Issue 2, June 2023

Section

Research Communications
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Europe PMC

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