Evaluation of Beauveria bassiana and Metarhizium anisopliae isolates against Plutella xylostella (L.) under laboratory conditions

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Authors

  • Bathina Poornesha
     ICAR-National Bureau of Agricultural Insect Resources, Post Bag No. 2491, H.A. Farm Post, Bellary Road, Bengaluru - 560024, Karnataka ,IN
  • Bonam Ramanujam
     Department of Biotechnology, Center for Post Graduate Studies, Jain University, Jayanagar, Bengaluru - 560011, Karnataka ,IN

DOI:

https://doi.org/10.18311/jbc/2020/26131

Keywords:

Beauveria bassiana, Entomopathogenic fungi, Metarhizium anisopliae, Plutella xylostella

Abstract

Twenty isolates each of Beauveria bassiana and Metarhizium anisopliae were tested against the second instar larvae of Plutella xylostella through laboratory bioassay using larval dip method at the concentration of 1í—107 conidia/ml. Higher larval mortality of 88.85% and 81.44%, were observed with NBAIR Ma-4 and NBAIR Ma-35 isolates of M. anisopliae and 77.36% with NBAIR-Bb-5a isolate of B. bassiana. Further studies on dose and time mortality with four isolates indicated lowest LC50 value of 2.6í—104 conidia/ml and LT50 of 86.6 hours with NBAIR Ma-35 isolate. These isolates have to be further tested against P. xylostella in infested fields of cabbage and cauliflower.

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Author Biography

Bathina Poornesha, ICAR-National Bureau of Agricultural Insect Resources, Post Bag No. 2491, H.A. Farm Post, Bellary Road, Bengaluru - 560024, Karnataka

Division of Insect Ecology

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Published

2021-02-11

How to Cite

Poornesha, B., & Ramanujam, B. (2021). Evaluation of <i>Beauveria bassiana</i> and <i>Metarhizium anisopliae</i> isolates against <i>Plutella xylostella</i> (L.) under laboratory conditions. Journal of Biological Control, 34(3), 168–172. https://doi.org/10.18311/jbc/2020/26131

Issue

Volume 34, Issue 3, September 2020

Section

Research Articles
Crossref
Scopus
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Europe PMC
Received 2020-09-25
Accepted 2020-12-28
Published 2021-02-11

 

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