Abstract
Investigations were undertaken to determine the impact of bio-foliar formulations on growth of silkworm, Bombyx mori L. and economic traits of cocoon. Bio-foliar formulations such as panchagavya, vermiwash, Effective Micro-organisms (EM) and seriboost were sprayed on mulberry, Morus sp. on 15, 30 and 45 days after pruning (DAP). Leaves harvested on 60 DAP were fed to silkworm and its growth parameters were documented in the fifth instar. Larval weight (3.95 g), silk gland weight (773.12 mg), SGSTI (25.46), ERR (92.05%) and silk productivity (8.34 cg day-1) were statistically higher in the larvae treated with EM. Economic traits viz., cocoon weight (1.60 g), shell weight (0.379 g), shell ratio (23.78%), cocoon yield (9625.90 no.), cocoon yield (21.78 kg), filament length (1330.80 m) and filament weight (354.85 mg) were also maximum in the EM. Larval mortality, denier and renditta were reduced by 55.18, 10.66 and 9.73%, respectively over the control due to application of bio-foliar formulations.
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