The caterpillar soon moves to its hibernation which is called the pupa stage. The twigs or racks kept in the tray serve as an anchor for the silkworm to get attached for spinning cocoons. The change in coloration of the silkworm indicates whether it is ready for the pupa stage. This ball is called a cocoon and is made up of a layer of silk. When the 4 moulting are over, the caterpillar move to a tiny chamber of bamboo in the tray to spin cocoons Stage 3: CocoonĪt this stage, silkworms start netting a thread around them which soon becomes ball-sized. Once larvae are born, they are kept in clean bamboo trays. This is usually done during the harvest of mulberry trees so that the caterpillars can feed a lot to grow up faster. In the case of silkworm rearing, the eggs are incubated to an optimal temperature for egg-hatching. These changes show its progress to the next stage. Within 25 to 35 days, they moult four times with significant changes in the body after each moult. The caterpillars consume large quantities of food(mulberry leaves) to grow up faster. The eggs hatch giving birth to hairy silkworms (caterpillars or larvae). Farmers store these eggs at optimal temperature and humidity, maintaining the hygiene factor. These eggs are collected, preserved under hygienic conditions and sold to farmers. These tiny dot-like eggs are usually laid in multiples of a hundred and they hatch in 10 days. The first stage starts when a female silk moth lays eggs on mulberry leaves. Cocoons are used for silk manufacturing which in turn is used in making silk clothes. Soon, it is covered by these silk fibres and transforms into a pupa. The pupa is enveloped in this covering called cocoon until it transforms into a moth. In this process, the silk thread is created. This fibre is made up of protein which hardens on exposure to air. Sooner, it starts to swing its head from side to side, secreting a fibre. Soon, they undergo the process of hibernation, transforming into a pupa. During this process, they weave a protective net around them to cling to. Caterpillars feed on mulberry leaves and grow fast. Soon the eggs hatch and the larvae or caterpillars come out. The process starts with the female silk moth laying eggs.
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