National Academy of Agricultural Sciences (NAAS)
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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 |
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.
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