using old equipment with termites in the boxes
I am trying to reuse some old boxes. There are termites in some of them. Looking for methods of killing the termites without leaving some kind of residue that might be harmful to the bees. I have thought of freezing, but don't have a large enough freezer for boxes. I know some are using orange oil to kill termites in house, would the bees object to the orange oil? Any other ideas?
USDA zone 11a, Western Garden zone 24 (75 ft elev. n34.0w118.47)