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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.
 
Creator SOUMYA, B R
 
Contributor FATIMA, SADATULLA
 
Subject extraction, biological interaction, biological phenomena, bacteria, land management, peptides, poultry equipment, animal developmental stages, proteins, nucleotides
 
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.
 
Date 2017-01-04T08:37:45Z
2017-01-04T08:37:45Z
2011-02-26
 
Type Thesis
 
Identifier th-9966
http://krishikosh.egranth.ac.in/handle/1/94282
 
Language en
 
Format application/pdf
 
Publisher University of Agricultural Sciences GKVK, Bangalore