I have mentioned this before a couple of times but I have noticed several 
posts that made me think that some don't know-or believe.
I store several hundred supers a year in rooms that have ,say, one window(or 
a ight bulb or two) and fair ventilation.
I "cross-stack" them for adequate ventilation.
Over the last 7 years or so I have lost less than a dozen frames from wax 
moths-total.
Note that this is for shallow supers,but I think the same applies for medium 
supers, as I have experimented with the few I have...dont know about deeps.
You might want to try a few in your area to see if it works there as it has 
been proven here.
Save money, time, and be rid of a potentially harmful chemical.

John Horton 

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