Bioefficacy of White Muscardine Fungus, Beauveria bassiana (Balsamo) Vuillemin and Entomopathogenic Nematode, Heterorhabditis indica (Poinar) against Rice Blue Beetle, Leptispa pygmaea Baly

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Authors

  • K. Karthikeyan
     Regional Agricultural Research Station, Pattambi 679 306, Kerala ,IN
  • Sosamma Jacob
     College of Horticulture, Vellanikara 680 656, Kerala ,IN

DOI:

https://doi.org/10.18311/jbc/2009/3620

Keywords:

Beauveria bassiana, Heterorhabditis indica and Rice Blue Beetle.

Abstract

Laboratory studies were conducted during the year 2005-2006 to find out the efficacy of the white muscardine fungus, Beauveria bassiana (Balsamo) Vuillemin and the entomopathogenic nematode, Heterorhabditis indica (Poinar) against adult and grubs of rice blue beetle, Leptispa pygmaea Baly. B. bassiana caused a cumulative adult mortality of 56.67-80.00 per cent at 105-109 spores ml-1 and the LC50 value was 2.26x104 spores ml-1. The entomopathogenic nematode, H. indica caused a cumulative mortality of 66.67-91.67 per cent at concentrations of 5IJs to 9IJs in the grubs of L. pygmaea. The cumulative LC50 value was 3.83IJs. The mortality of L. pygmaea was found to increase with reducing dose and increasing exposure period of both B. bassiana and H. indica. The effective pathogenicity of B. bassiana and H. indica against L. pygmaea is reported for the first time.

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Published

2009-04-14

How to Cite

Karthikeyan, K., & Jacob, S. (2009). Bioefficacy of White Muscardine Fungus, <I>Beauveria bassiana</I> (Balsamo) Vuillemin and Entomopathogenic Nematode, <I>Heterorhabditis indica</I> (Poinar) against Rice Blue Beetle, <I>Leptispa pygmaea</I> Baly. Journal of Biological Control, 23(1), 79–81. https://doi.org/10.18311/jbc/2009/3620

Issue

Volume 23, Issue 1, March 2009

Section

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