how to raise silkworms
https://kilo-wiki.win/index.php/Understanding_the_Cocooning_Process_of_Bombyx_mori_Silkworms
Raising silkworms starts with fresh mulberry leaves, their only food. Keep the worms in a clean, ventilated box at room temperature, feeding them leaves several times a day. As they grow, they molt and eventually spin cocoons from silk threads. After about a week, you can harvest the cocoons for silk or let the moths emerge.