After all the differences on this thread I think I'll stick with the bee school.http://126.96.36.199/courses/beekeeping1.0/only_drone_brood.html
Only Drone Brood
When you inspect your hive, if you have only drone brood then you have a problem that must be fixed. Drones do not do any work in the hive. You need worker bees to care of the larvae and make the honey. If your hive is not producing worker bees, then it will become weak quickly. The colony will die.
There are 2 possible reasons for having only drone brood in your hive:
1. Poor or Old Queen: Sometimes when your queen gets old she is no longer a good egg layer. Sometimes she has used all the sperm she got on her mating flight. Then she will only lay drone brood.
Sometimes a new queen will not get mated properly. She will not have enough sperm. Again, this means she will only lay drone brood. In both cases you need to re-queen your hive (topic 14) to solve this problem.
2. Laying Worker: Sometimes, when a hive loses their queen one or more worker bees may begin to lay eggs. This can cause a serious problem. The eggs that a worker lays are not fertilised. The worker has not mated with drones. She has no sperm. She will lay only unfertilised eggs. Unfertilised eggs can only hatch into drone bees. a hive full of drone bees will not do very well. There will be no worker bees to do all of the work that is needed to keep the hive going. After a while the hive will die out.
When you go to your hive and see only drone brood, this is a sign that you may have a laying worker. Another sign that a worker is laying eggs in your hive is if you see more than one egg in some of the cells.
This is a very difficult problem to fix. The bees think they have a queen. They will not accept a new one. There may be more than one laying worker in a hive. If you could find and kill the laying worker(s) then you could introduce a new queen. The laying worker does not look any different from a normal worker. It is difficult to know which worker (s) is laying. So unless you see her laying an egg, you will not be able to recognize which worker is trying to be queen.
Uniting the laying worker hive with a queen right hive over a sheet of newspaper sometimes works. It is a bit risky. The workers from the laying worker hive might throw out the real queen, instead of the laying worker.
Another way to fix this problem is to carry the hive about 20 or 30 meters away from its place and brush all of the bees out onto the ground. Take the empty equipment and frames back to their spot and set them up again. The laying worker(s) cannot fly and will not be able to get back to the hive. The rest of the bees will return to the hive and then you can try to:
introduce a new queen or capped queen cell
<!--[if !supportLists]--> <!--[endif]-->unite it with a queen right hive
<!--[if !supportLists]--> <!--[endif]-->give the colony a frame of eggs and larva so bees can raise a new queen.
Also read herehttp://www.bushfarms.com/beeslayingworkers.htm