Author(s):

Roli Srivastava, V.B. Upadhyay

Abstract: The application of phytojuvenoid on Bombyx mori larvae has been proved to be significance in the sericulture industry. The thickness of cocoon shell increased with the increasing number of larval treatment from single to triple in 10, 20 and 30% phytojuvenoid concentration and the thickness of cocoon shell (in mm) was highest (0.836±0.05) in 30% phytojuvenoid concentration - triple treated larvae. % shell ratio of Bombyx mori was significantly influenced due to variation in the phytojuvenoid concentration. Maximum shell ratio (15.50±0.04) was recorded in case of 30% phytojuvenoid concentration at triple treated larvae. But at higher concentration (40%) both are decreased. A control set was always maintained with each set of experiment. The phytojuvenoid influences the level of protein in the larvae and caused beneficial effect on the productivity of cocoon and the life pattern of silkworm.

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