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Effect of NPV of the armywormMythimna (Pseudaletia) separata on the silkwormBombyx mori
Authors:S G Dhaduti  S B Mathad
Institution:(1) Entomology Division, Department of Zoology, Karnatak University, 580003 Dharwad, (India)
Abstract:Summary Nuclear polyhedrosis virus (NPV) material of the armywormMythimna (Pseudaletia) separata was administered in the form of PIBs and free virus rods to the larvae of silkwormBombyx mori. Routes used for administration were topical, intrahaemocoelic and oral. The larvae were treated with following concentrations: 10×105 PIBs/L, 10×106 PIBs/L, 10×107 PIBs/L, 10×108 PIBs/L. In all the 3 experiments, the larvae showed neither any signs and symptoms, nor mortality due to polyhedrosis. Thus it appears that the NPV ofM. (P.) separata is safe for the silkwormB. mori.Acknowledgments. We are grateful to the Karnatak University, Dharwad, for awarding UGC Junior Fellowship to S.G.D. and for financial assistance made available to S.B.M. We thank Professor M. Appaswamy Rao, Department of Zoology, for providing the necessary facilities. Our thanks are also due to Mr B. Chavannawar for supplying mulberry leaves and to the Government Silk Farm, Hindalaga, Belgaum, for providing silkworm eggs.
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