Question

In sericulture industry do which stage of silkworm do they buy

Answer 1

Normally, the silk traders prefer to buy the silkworms in cocoon stage, where they do not need to feed these worms anymore or take care of them.

The traders only need to put these cocoons in boiling water and extract the long silk threads, which are then winded into reels and used for weaving luxurious silk fabrics.