USE OF BOTANICALS AS BED DISINFECTANT AGAINST WHITE MUSCARDINE DISEASE OF SILKWORM, Bombyx mori L.
KrishiKosh
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Title |
USE OF BOTANICALS AS BED DISINFECTANT AGAINST WHITE MUSCARDINE DISEASE OF SILKWORM, Bombyx mori L.
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Creator |
SOUMYA, B R
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Contributor |
FATIMA, SADATULLA
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Subject |
extraction, biological interaction, biological phenomena, bacteria, land management, peptides, poultry equipment, animal developmental stages, proteins, nucleotides
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Description |
Study on in-vitro and in-vivo efficacy of botanicals leaf powder against Beauveria bassiana and their influence on growth, development and economic traits of silkworm was conducted during 2010-11. Among the five botanicals tested in in-vitro studies, Eucalyptus hybrid recorded maximum growth inhibition of the fungus, Beauveria bassiana in all the concentrations tested. However, Acacia auriculiformis, Moringa olifera, Murayya koenigi were found next in order for their efficacy in inhibiting the growth while minimum inhibition of fungus was recorded in Syzygium cumini. In all botanicals tested 10% concentration showed significant reduction of fungal growth compared to lower concentrations of botanical tested. In in-vitro studies the best two botanicals (Eucalyptus and Moringa olifera) dusted at 100% every day on silkworm (PMxCSR2), inoculated with stock solution of fungal spore suspension enhanced larval weight (28.92 and 28.84 g/10 larvae), ERR (88.00 % and 76.00%), cocoon weight (1.67 and 1.53g), shell weight (0.280 and 0.259g), pupal weight (1.38 and 1.27g), shell ratio (16.92 and 16.86 %), silk productivity (3.49 and 3.23cg/day) filament length (815.00 and 785.00m) and denier (1.87 and 1.98) besides reduced larval duration (8.007 and 8.009days) and larval mortality (4.67 and 8.67% ) compared to alternate day dusting and also 50% concentration of botanical leaf powder dusted every day and on alternate days. Worms inoculated with fungal spores and dusted with lime (100%) every day showed moderate increase in larval weight (28.61g/10 larvae), ERR (68.33 %), cocoon weight (1.43g), shell weight (0.218g), pupal weight (1.21g), shell ratio (15.31 %), silk productivity (2.73cg/day), filament length (750.00m) and denier (2.10) and moderately reduced larval duration (8.014days) and larval mortality (11.33%) compared to everyday dusting of botanicals (100%) alone, and was maximum in botanicals with lime (1:1) dusted treatments. The reduced concentration of botanicals result in reduced concentration of biochemical constituents with antifungal properties could be the reason for reduction in the larval as well as cocoon parameters in fungal inoculated worms. |
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Date |
2017-01-04T08:37:45Z
2017-01-04T08:37:45Z 2011-02-26 |
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Type |
Thesis
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Identifier |
th-9966
http://krishikosh.egranth.ac.in/handle/1/94282 |
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Language |
en
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Format |
application/pdf
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Publisher |
University of Agricultural Sciences GKVK, Bangalore
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