Mulberry leaf is the sole food material and its nutrition is necessary for growth regulating factors in silkworm, Bombyx mori L. Silkworm derives proteins directly from the mulberry leaves for producing nearly 70 per cent of silk. Hence, the mulberry leaves should be produced in abundant quantity with good quality and reasonable cost of production. Unpruned mulberry plant was found to produce less quantity of leaves with poor quality. Periodic pruning is important to maintain vigorous young shoots and foliage
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