If possible freeze the frames for 48 hours or more, this will kill any wax
moths that you have.  Also, I take a propane torch and heat the corners and
the metal frame rest on each shallow box to kill any larva that may be hiding.
Hope this is of some help.  You don't have to char the wood with the burner,
just get it to where you think all the larva can't survive.
 
Norm