Here's the story: I removed frames from a "collapsing" hive in summer (bee #s vanishing, etc, and some SHB maggots appearing). Froze them for 2 weeks, then stored them in large plastic bins (not air-tight, I guess, but pretty snug at the tops). About 2 weeks ago, I sprayed each frame with a solution of Bt-k (dosed per label for generic moths), just-in-case.
Last week I checked -- scores of moths, moth maggots, cocoons, webbing all over the frames. I dumped in the PDB, and w/in a day .... moths dead, and seemingly no activity.
So .... can I rely on the chemical to have killed the moth eggs? I'm sure cold doesn't do it, and scrubbing with soapy water doesn't seem too effective, either. Also, the fact that the moths developed from maggots bothers me, considering I used Bt-k.
I've lost some really beautiful honeycomb because of these vermin. Any ideas/suggestions/etc would be appreciated.
FWIW, a keeper pal of mine says she simply tosses frames when she sees their foundations are infested. Cheap to get new ones (per her; I'm unemployed, so nothing's cheap to me), a pain to clean/store, and not worth risking infecting a happy hive with frames carrying vermin eggs.