Field evaluation of biopesticides against whitefly, Bemisia tabaci (Homoptera: Aleyrodidae) in tomato

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Authors

  • Department of Agricultural Entomology, University of Agricultural and Horticultural Sciences, Shivamogga - 577204, Karnataka ,IN
  • Department of Agricultural Entomology, University of Agricultural and Horticultural Sciences, Shivamogga - 577204, Karnataka ,IN
  • ICAR- National Bureau of Agricultural Insect Resources, Hebbal, Bellary Road Bengaluru - 560024, Karnataka ,IN
  • ICAR- National Bureau of Agricultural Insect Resources, Hebbal, Bellary Road Bengaluru - 560024, Karnataka ,IN

DOI:

https://doi.org/10.18311/jbc/2021/26480

Keywords:

Azadirachtin, Bemisia tabaci, bioagents, biorational insecticide, botanicals, tomato, Spiromesifen
Biological control

Abstract

The efficacy of different biocontrol agents, botanicals and a biorational insecticide were evaluated against whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae) in tomato under field conditions at Shivamogga, Karnataka during two seasons (Rabi 2018-2019 and summer 2019-2020). The results revealed that spiromesifen 240 SC @ 0.7 ml/L was the most effective in reducing the B. tabaci population i.e., 85.12 and 85.16 % reduction over untreated control during Rabi and summer, respectively followed by azadirachtin 5% @ 2 ml/l with reduction of 68.61 and 66.32 % over untreated control during Rabi and summer, respectively. The response of these treatments was also observed on the yield attributes, with highest fruit yield of 53.67 t/ha (6 pickings) in spiromesifen treatment followed by azadirachtin (52.93 t/ha), but the highest Benifit: Cost ratio was noticed in azadirachtin 5% (1:3.41), followed by spiromesifen 240 SC (1:3.38).

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Published

2021-09-29

How to Cite

Abhishek, M. S., Hanumanthaswamy, B. C., Venkatesan, T., & Selvaraj, K. (2021). Field evaluation of biopesticides against whitefly, <i>Bemisia tabaci</i> (Homoptera: Aleyrodidae) in tomato. Journal of Biological Control, 35(1), 12–18. https://doi.org/10.18311/jbc/2021/26480

Issue

Section

Research Articles
Received 2020-12-02
Accepted 2021-03-31
Published 2021-09-29

 

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