My neighbor's attic becomes infested with ladybugs as the weather turns cold each fall. She thinks they're a nuisance, I think they're gold. I've seen containers of ladybugs sold in garden centers in a refrigerator. So it occurs to me there might be a way to harvest and overwinter my neighbor's "nuisance." I've thought about harvesting them by slipping nylon hose over the end of the shop vac. What conditions and care would they need to make it to the next spring? Thanks for your help.

Seedmama