Bio-efficacy of Heterorhabditis bacteriophora (Rhabditida: Heterorhabditidae) against serpentine leafminer, Liriomyza trifoliiBurgess (Diptera: Agromyzidae) in oilseed crops

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Authors

  • B. Gayatri
     ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad - 500030, Telangana ,IN ORCID logo http://orcid.org/0000-0002-4392-5404
  • P. Duraimurugan
     ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad - 500030, Telangana ,IN

DOI:

https://doi.org/10.18311/jbc/2019/23030

Keywords:

Efficacy, Heterorhabditis bacteriophora, Late instar larva, serpentine leafminer
BIOLOGICAL CONTROL

Abstract

Virulence and efficacy of Entomopathogenic Nematode (EPN), Heterorhabditis bacteriophora was tested against late instar larva of serpentine leafminer, Liriomyza trifolii, under laboratory conditions. Five different Infective Juvenile (IJs) concentrations (10, 30, 50, 70 and 100 IJ larva-1) were used. The highest mortality rate caused by H. bacteriophora is 65.1% at 24 hours and 73.8% at 48 hours post inoculation at an inoculation concentration of 100 IJ larva-1. The minimum concentration of 30 IJs per larva shown 37.1% and 52.2% mean larval mortality at 24 and 48 hours post inoculation, respectively. The virulence of H. bacteriophora (LC50) was established at 54 IJs at 24 hours and 37.8 IJs at 48 hours for killing 50% of the larvae tested. The results of this study revealed the potential and scope of EPNs for their utilization in management of L. trifolii in oilseed crops.

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Published

2019-07-31

How to Cite

Gayatri, B., & Duraimurugan, P. (2019). Bio-efficacy of <i>Heterorhabditis bacteriophora</i> (Rhabditida: Heterorhabditidae) against serpentine leafminer, <i>Liriomyza trifolii</i>Burgess (Diptera: Agromyzidae) in oilseed crops. Journal of Biological Control, 33(2), 169–172. https://doi.org/10.18311/jbc/2019/23030

Issue

Volume 33, Issue 2, June 2019

Section

Research Notes
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