EVALUATION OF VIRULENCE OF ENTOMOPATHOGENIC NEMATODE ISOLATES AGAINST HELICOVERPA ARMIGERA AND SPODEPTERA LITURA

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Published

04-02-2023

DOI:

https://doi.org/10.58414/SCIENTIFICTEMPER.2010.01.1.32

Keywords:

Entomopathogenic nematodes, Helicoverpa armigera, Spodeptera litura, Galleria mellonella, Steinernema, Heterorhabditis, efficacy

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Vol. 1 No. 01 (2010): The Scientific Temper

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Articles

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Copyright (c) 2023 The Scientific Temper

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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Authors

  • A. K. Chaubey Nematology Laboratory, Department of Zoology, C.C.S. University, Meerut-250004, India
  • Vidhi Tyagi Nematology Laboratory, Department of Zoology, C.C.S. University, Meerut-250004, India
  • Tanu Vatsa Nematology Laboratory, Department of Zoology, C.C.S. University, Meerut-250004, India
  • Chhavi Kaushik Nematology Laboratory, Department of Zoology, C.C.S. University, Meerut-250004, India

Abstract

A trial was laid down to test the efficacy and mass production of the 15 isolates of the two important Entomopathogenic nematodes viz. Steinernema and Heterorhabditis sp. using three of the important pests i.e. Galleria mellonella, Helocoverpa armigera and
Spodeptera litura under laboratory condition. Different inoculants Viz. 10, 20, 40, 60, 80 Infective Juveniles/insect were used for the study. Observations were taken at 6 hrs intervals on the mortality of insects (6–72hrs). A dose of 10-30 Infective Juveniles (second generation) of all the 5 tested entomopathogenic nematode isolates were found significant (P < 0 05) causing mortality (60-80%) within 50-94 hrs. S. littura was found more susceptible as compared to G.mellonella and H. armigera. The values of LC50 and LT50 indicated that nematodes of both genera gave significant results in virulence and time required for killing the pest larvae.

How to Cite

Chaubey, A. K., Tyagi, V., Vatsa, T., & Kaushik, C. (2023). EVALUATION OF VIRULENCE OF ENTOMOPATHOGENIC NEMATODE ISOLATES AGAINST HELICOVERPA ARMIGERA AND SPODEPTERA LITURA. The Scientific Temper, 1(01), 171–176. https://doi.org/10.58414/SCIENTIFICTEMPER.2010.01.1.32

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