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Pathogenicity of Different Isolates of Entomopathogenic Fungus, Nomuraea rileyi (Farlow) Samson Against Tobacco Caterpillar, Spodoptera litura (Fabricius)

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Abstract

Fourteen geographical isolates of entomopathogenic fungus, Nomuraea rileyi (Farlow) Samson were tested for their germination potential. They were also screened for concentration and time mortality response against tobacco caterpillar, Spodoptera litura. Four samples were found superior in germination. The maximum spore germination was observed in isolate Nr-Kc collected from cadaver of S. litura (84.16 %) followed by isolate Nr-Mc (82.60 %), Nr-Rc (82.48 %) and Nr-Hc (82.06 %). Lowest LC50 value was recorded by the isolate Nr-Kc against second and third instar larvae of S. litura (1.26 × 105 and 1.60 × 106, respectively). Similarly, the isolate Nr-Kc also recorded lowest LT50 value in respect of second instar (143.89 h) and third instar (178.43 h) larvae of S. litura.

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Acknowledgments

Authors are highly thankful to Miss. Subhangi Narkar, Research Assistant, Referral Laboratory, Entomology Section, College of Agriculture, Pune for providing necessary technical help. Authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Division of Entomology, College of Horticulture, Pune, Maharashtra, India

    C. S. Chaudhari

  2. College of Agriculture, Pune, Maharashtra, India

    A. G. Chandele & M. D. Dethe

  3. Mahatma Phule Krishi Vidyapeeth, Rahuri, Maharashtra, India

    D. S. Pokharkar

  4. Division of Crop Protection, ICAR Research Complex for North Eastern Hill region, Umroi Road, Umiam, 793103, Meghalaya, India

    D. M. Firake

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  1. C. S. Chaudhari
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  2. A. G. Chandele
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Correspondence to C. S. Chaudhari.

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Chaudhari, C.S., Chandele, A.G., Pokharkar, D.S. et al. Pathogenicity of Different Isolates of Entomopathogenic Fungus, Nomuraea rileyi (Farlow) Samson Against Tobacco Caterpillar, Spodoptera litura (Fabricius). Proc. Natl. Acad. Sci., India, Sect. B Biol. Sci. 86, 1001–1007 (2016). https://doi.org/10.1007/s40011-015-0537-6

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  • DOI: https://doi.org/10.1007/s40011-015-0537-6

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