International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
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Studies on Tolerance Level Against Antheraea mylitta Cytoplasmic Polyhedrosis Virus (AmCPV) in Different Eco-races of Tropical Tasar Silkworm, Antheraea Mylitta Drury

  • Singh, G.P. (Silkworm Pathology Laboratory, Central Tasar Research and Training Institute) ;
  • Zeya, S.B. (Silkworm Breeding and Genetics Laboratory, Central Tasar Research and Training Institute) ;
  • Srivastava, A.K. (Silkworm Breeding and Genetics Laboratory, Central Tasar Research and Training Institute) ;
  • Ojha, N.G. (Silkworm Pathology Laboratory, Central Tasar Research and Training Institute) ;
  • Suryanarayana, N. (Central Tasar Research and Training Institute)
  • Published : 2008.09.30
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Abstract

Pathogenic infection in tasar silkworm, Antheraea mylitta Drury is common and there is a breed specific response regarding tolerance. Hence, the tolerance level of three eco-races of tasar silkworm viz. Daba, Sarihan and Raily to Antheraea mylitta cytoplasmic polyhedrosis virus (AmCPV) infection was tested. The survival of Daba, Sarihan and Raily eco-races was significantly different (p<0.05) when challenged with the same concentration ($1{\times}10^5$ polyhedra/ml) of AmCPV. Daba eco-race was more tolerant to the AmCPV infection having higher survival (65.7%) and $LC_{50}$ values (1000893.17 polyhedra/ml) of AmCPV followed by Sarihan eco-race (50.7% survival and $LC_{50}$ value of AmCPV 187203.6168 polyhedra/ml) and Raily eco-race (24.3% survival and $LC_{50}$ value of AmCPV 5176.37 polyhedra/ml). The tolerance level of Daba and Sarihan eco-races against AmCPV was more than two times than Raily eco-race.

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References

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