In vitro Pathogenicity of Bacillus thuringiensis against Tea Termites


Affiliations

  • Assam University, Department of Ecology & Environmental Sciences, Silchar, Assam, 788011, India
  • G. C. College, Department of Zoology, Silchar, Assam, 788 004, India
  • Assam University, Department of Ecology & Environmental Sciences, Silchar, Assam, 788 011, India

Abstract

Tea is an economically important plantation crop of Assam, India. Termites are one of the predominant pests causing damage to tea, thereby affecting the productivity and quality. Bacillus thuringiensis strains are widely used as microbial control agents for different insect pests. In the present study B. thuringiensis and B. thuringiensis subsp. israelensis were evaluated in vitro for their pathogenicity against two species of tea termites, viz., Microtermes obesi Holmgren and Microcerotermes beesoni Snyder. Bacillus thuringiensis strains caused mortality of above 80% in both the termite species. B. thuringiensis subsp. israelensis was found to be more virulent compared to B. thuringiensis against the termites.

Keywords

Microcerotermes beesoni, Microtermes obesi, Median Lethal Time.

Subject Discipline

Agriculture Sciences

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