Re: How to Store Supers?
If your frames had no pollen or brood in the combs then wax moths shouldn't bother them. The moths larva are after protein in the pollen and pupa casings and destroy the wax getting to them. Honey only frames have no protein in them for the wax moth larva to want.
Also, store them in your barn. Moths like warm and dark. I have my old brood frame boxes stored out so they get first 1/2 day full sun. They are tipped 45 degrees to the sky with no upper covers or lids. No moths in any of the 8 or 9 boxes except on 3 or 4 frames total. Your barn is cold to freezing, just those temps should deter the moths, store them open and up off the ground so mice can't get to them.
20+ years, raise my own queens, feed when needed, I treat but have not perfected varroa management yet.