Stedic
House Bee
Doesn't really matter - it's not the 'vapour' that does the trick but the desublimated crystals that comes in contact with the bees afterwards, it's effective for a few days so eventually all the bees come into contact with it. I never close up the bees when I do it, the bees out flying will get it later
Ah I didn’t realise that. So rather than clear the supers, could I just put a solid board over the QE, vape below, then remove the solid board after the OA has recrystallised? Say 30 minutes after vaping?