Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810054057
Authors: Surapwar, Pandhari Hanmantrao
Advisor: Nalwandikar, P. K.
Title: Effect of different BED disinfectants on life-cycle and economic traits of double hybrid mulberry silkworm (Bombyx mori L.)
Publisher: Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani
Language: en
Type: Thesis
Pages: 110
Agrotags: null
Keywords: Kagzi lime, Multi-Fruit, Alphanso mango, Oscillating sieve, Divergent roller
Abstract: The experiment was conducted on effect of different bed disinfectants on life-cycle and economic traits of double hybrid mulberry silkworm {Bombyx mori L.) at Department of Agricultural Entomology, College of Agriculture, Latur. The experiment was conducted in randomized block design with three replications and seven treatments using bivoltine double hybrid mulberry silkworm {Bombyx mori L.) race (CSR2 X CSR27) (CSRfi X CSR26) during October-November 2015. The significantly shortest pupal duration (10.07 days), highest moth emergence (96.53 per cent) and maximum fecundity (565.94 eggs) of bivoltine double hybrid silkworm was recorded with the application of bed disinfectant Vijetha at the rate 5g per sq. ft. Vi hour before resuming feeding after each moulting. The shortest larval duration (22.03 days) and highest hatching percentage (96.31 per cent) was recorded in application of bed disinfectant Vijetha at the rate 5g per sq. ft. Vi hour before resuming feeding after each moulting. The larval duration recorded in Vijetha is at par with the larval duration recorded in application of bed disinfectant Labex at the rate 4g per sq. ft. (22.86 days) and hatching percentage recorded in Vijetha treatment was at par with use of Vijetha Supplement at the rate 5g per sq. ft (89.09 per cent). The significantly highest larval duration (24.43 days), pupal duration (11.65 days) and minimum moth emergence (85.95 per cent), lowest fecundity (439.17 eggs), lowest hatching percentage (84.84 per cent) were recorded in untreated control. The significantly highest larval weight of ten matured larvae (40.58 g), single shell weight (0.44 g), cocoon shell ratio (22.68 per cent), cocoon yield per 10,000 larvae (19.79 kg), longest cocoon filament length (952.33 m), denier (2.87) and effective rate of rearing (98.15 per cent) were recorded due to application of bed disinfectant Vijetha at the rate 5g per sq. ft. ‘/2 hour before resuming feeding after each moulting. The highest single cocoon weight (1.94 g) and filament weight (0.30 g) were recorded in application of Vijetha at the rate 5g per sq. ft. which were at par with use of bed disinfectant Ankush at the rate 4g per sq. ft. (1.89 g and 0.28 g, respectively). The significantly lowest larval weight of ten matured larvae (29.90 g), single cocoon weight (1.60 g), single shell weight (0.29 g), cocoon shell ratio (18.13 per cent), cocoon yield per 10,000 larvae (13.36 kg), filament length (795.73 m), filament weight (0.21 g), denier (2.37) and effective rate of rearing (89.16 per cent) were recorded in untreated control. The significantly highest disease incidence (3.06 per cent) was recorded in untreated control.
Subject: Agricultural Entomology
Theme: Agriculture
These Type: M.Sc
Issue Date: 2016-05-30
Appears in Collections:Thesis

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