Hi John/All John - you mention you need to get rid of some AHB in a hive, but don't want to lose the combs. I would do the following: - go to the hive at night, tape up all little cracks etc including the entrance. Then drill a hole into the box large enough to put a hose into. Connect the hose to your car exhaust and then just leave your car running for an hour. This kills the bees - not it is not Carbon monoxide that kills the bees as is the case with humans and exhaust fumes - the bees just suffocate from lack of oxygen. If you have a big car it won't work because the fumes are too hot. Keep well Garth Garth Cambray Camdini Apiaries 15 Park Road Grahamstown Apis mellifera capensis 6139 South Africa Time = Honey