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Journal of Entomology and Zoology Studies
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ISSN Print: 2349-6800 | ISSN Online: 2320-7078

Journal of Entomology and Zoology Studies

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2017, Vol. 5, Issue 3
Potentiality of Beauveria bassiana strains against Helicoverpa armigera through laboratory bioassay

P Swathi, PN Ganga Visalakshy and SB Das

The susceptibility of second instar Helicoverpa armigera (L-2) to seven strains of Beauveria bassiana, was tested under laboratory conditions at ICAR-IIHR, Bengaluru during 2016-17 using the larval immersion method. The highest virulence (100%) was recorded in strain-4 with LC50 value (2.02 x 105spores ml-1) followed by strain-1(92.50%) with LC50 value (2.48 x 105 spores ml-1) at 120 hours after treatment. Corrected mortalities ranging from 59.50 to 100% at different hours after treatment were recorded in all the strains with more profound effects in strain- 4 and strain-1.
Pages : 463-467 | 472 Views | 40 Downloads
How to cite this article:
P Swathi, PN Ganga Visalakshy, SB Das. Potentiality of Beauveria bassiana strains against Helicoverpa armigera through laboratory bioassay. J Entomol Zool Stud 2017;5(3):463-467.
Journal of Entomology and Zoology Studies
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