India has to compete in the international market successfully and it is necessary to improve the quality of the silk yarn produced by improving the technology of the silk reeling and processing. But, production of raw silk of international grade is possible only through introduction of newer bivoltine silkworm strains especially double cross hybrids. India has strong sericulture base with enormous potential for boosting silk production. In India’s context, stability of double cross hybrid with higher survival is more relevant than higher productivity under prevailing situation. Silkworm is a kind of night butterflies. Butterflies are light cream colour have chubby bodies and have soft feathers. Wingspan is about 4-5 cm. Butterfly have lost flying ability because of domestication also have 2 or 3 days life and at that period doesn’t feed and doesn’t fly. The stability of bivoltine crop was not achieved mainly due to climate, rearing and socio-economic conditions. Major constants for silk production is high cost of the equipment and rearing room, lack of manpower, the difficulty in controlling silkworm diseases, the lack of knowledge regarding the physical conditions in the rearing room and grading of cocoons, the distance between cocoon trading units, and the unfavorable rates for cocoons during silkworm rearing are some of the constraints on silk production. The purpose of the study was to helps for rearing, control disease and insect pest, processing & selling of cocoon and helps doubling farmer’s income.

Silkworm, Bombyx mori, Mulberry, Mulberry, Tasar, Oak, Eri, Muga and Disesas

The success of sericulture industry depends upon several factors of which the impact of the environmental factors such as biotic and abiotic factors is of vital importance. Among the abiotic factors, temperature plays a major role on growth and productivity of silkworm, as it is a poikilothermic (cold blooded) insect Benchamin and Jolly (1986). It is also known that the late age silkworms prefer relatively lower temperature than young age and fluctuation of temperature during different stages of larval development was found to be more favourable for growth and development of larvae than constant temperature. There are ample literature stating that good quality cocoons are produced within a temperature range of 22–27◦C and above these levels makes the cocoon quality poorer Krishanaswami et al. (1973). However, polyvoltine races reared in tropical countries are known to tolerate slightly higher temperature Hsieh et al. (1995). Although there are silk fiber that obtained from undomesticated silkworm such as Tasar, Muga, Eri, Anaphe, today silk fiber that obtained from Bombyx mori is important for production and consumption worldwide (Atavve Namırtı, 2011).

M.P. Gautam, D.K. Singh, S.N. Singh, S.P. Singh, Manoj Kumar and Shailendra Singh (2022). A Review on Silkworm (Bombyx mori Linn.) An Economic Important Insect. Biological Forum – An International Journal, 14(4a): 482-491.