The egg, laid in the summer or early fall, remains dormant until the warmth of spring stimulates it to start developing. When silkworms first hatch in the spring, they are tiny—3 mm or so (about 1/8")—and hairy. They require young tender mulberry leaves during their first few days.

What time of year do silkworms hatch?

When Silkworms Hatch

In areas where the seasons change, the female silkworm moth lays her eggs at the end of summer, and the eggs do not hatch until spring. If the area in which the eggs are laid is continually warm, the eggs will hatch about 10 days after the moth laid them.

How long do silkworms mate for?

How long do Silk-Moths mate for? Silk-Moths mate continuously for 12-24 hours. At the end of this time-period, the pair will seperate – which is usually initiated by the male. The male will look for a new female to mate with after seperating from its partner, while the female will lay any eggs that she may be storing.