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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(7): 2314-2319
DOI: https://doi.org/10.20546/ijcmas.2017.607.273


Bioefficacy of Entomopathogenic Nematodes against Spodoptera litura (Lepidoptera: Noctuidae) in Bhendi
Sharmila Radhakrishnan*and Subramanian Shanmugam
Department of Nematology, Tamil Nadu Agricultural University, Coimbatore-641003, Tamil Nadu
*Corresponding author
Abstract:

The efficacy of entomopathogenic nematodes (EPN) against larvae of Spodoptera litura (Lepidoptera: Noctuidae) in bhendi was evaluated under laboratory and glasshouse conditions. Under laboratory conditions, larvae were highly susceptible to the two nematode species, Heterorhabditis indica and Steinernema glaseri (Nematoda: Rhabditidae) when used separately and the percentage mortality increased with increase the dose of nematodes. In laboratory studies, median lethal concentration and median lethal time of H. indica registered lowest LC50 of 6.81 IJ/larva and LT50of 23.42 h/larva and for S. glaseri which recorded highest LC50 8.45 and LT50of 16.72 IJ /larva for S. litura. Median lethal time of H. indica was less on S. litura than S. glaseri under laboratory conditions. Under pot culture conditions larva of H. indica was more effective on S. litura than S. glaseri under glasshouse conditions. The highest mortality of 76.66 per cent was observed with H. indica @ 5 × 109 IJ/ha with the least fruit damage of 29.16 per cent in bhendi.


Keywords: Entomopathogenic nematodes, Heterorhabditis indica, Steinernema glaseri, Spodoptera litura, Virulence, Bhendi.
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How to cite this article:

Sharmila Radhakrishnan and Subramanian Shanmugam. 2017. Bioefficacy of Entomopathogenic Nematodes against Spodoptera litura (Lepidoptera: Noctuidae) in Bhendi.Int.J.Curr.Microbiol.App.Sci. 6(7): 2314-2319. doi: https://doi.org/10.20546/ijcmas.2017.607.273