Extermination of honeybees in the long run is seldom successful. Extermination can cause more problems than it solves. It is better to leave the honeybees alone than to start poisoning them. Once a beehive is exterminated, the poison contaminates other beehives in the area. Robber bees will take the contaminated honey to their beehive and a beekeeper unknowingly may harvest this honey and sell it to a local health food store. The poison has entered the human food chain. No real testing is presently being done to detect insecticides in honey. The insecticide is very toxic for about two years. The insecticides can also kill live tropical fish such as exotic salt water fish.
Once the insecticides are no longer toxic to the bees, another swarm may move into the existing location. It may take only two to five years for a reinfestation to take place. A beeswax residue remains in the exterminated beehive which attracts more honeybees. The bees move over several feet from the original beehive and begin making more honeycomb. It won't take long before the beehive is up to its pre-exterminated strength.
The biggest problem with an exterminated beehive is wax moth. The wax moth is a small white moth about ½ inch long in the adult stage. The moth lay their eggs in the honeycomb during the warm months. The larvae hatch out during the winter and begin to eat the beeswax. A strong colony of honeybees can easily handle the wax moth, but dead bees cannot. The honey in the honeycomb begins to leak into the house. The honey drips from the ceiling, walls and into the basement. All of the drywall that has come in contact with the honey has to be torn out and replaced. That's not the worst part. The larvae invade the house. The larvae are harmless but look like 1½ inch long worms and get into everything. This can be a real nightmare!
The unattended honeycomb also attracts mice. Mice love eating honeycomb. Mice can be heard running above the ceiling of the room with the beehive. Mice can also transmit disease.
The honeybees should be removed not exterminated whenever possible. Extermination in the short term seems less expensive but in the long term is much more expensive.