I've had some success with raising silkworms I find plastic food tubs work very well (I modify the lids so allow excellent ventilation for the larger worms - bigger than baby worms - who I treat differently mostly to maintain a uniform microclimate and exclude small predatory insects (ants, spider, roaches etc).
See my thread -
viewtopic.php?f=76&t=222193
This might help too
http://www.peacefulsilkworms.com.au/guide (the lady who owns PeacefulSilkworms is Australia's top silkworm supplier and she's very helpful if you have questions (simply post the question on her facebook page).
I've raised worms from eggs on silkworm chow only (full life cycle) , on chow and fresh leaves, on leaves only (full live cycle) and am currently experimenting with from eggs on blanched - frozen then thawed leaves.
Crucial to silkworm farming success that you maintain excellent hygene in the work farm (box, tub) and don't crowd them.