If the combs are sealed properly...It should....
PDB killed SHB for me but the concentration is higher than wax moths to be effective. BT just makes them laugh while they are eating.
BT is specific to Lepidoptera
So I guess I'm saying beware. Wax moths are not your only problems with stored supers. Altho I hate doing so, I don't think I'll store supers again without using PDB. Drawn comb is just too valuable and there is just no sure way of knowing that SHB (or their eggs) are not already in them.
Last edited by snl; 06-17-2012 at 12:41 PM.
Why use PDB when it is really difficult to air the comb long enough/well enough when you want to give it back to the bees. 24 hours in the freezer deals efficiently with wax moth and I'm fairly sure that SHB would seccumb as well.
May you live long and prosper,
I have put PDB stored combs onto a hive after airing it out for less than an hour without any problems. Rather air it out for 24 hours but sometimes you need a super right away!
Raising Vermont Bees one mistake at a time.
USDA Zone 5A