We've been feeding our bees since January. I've been out of town for a couple of months, so was only able to check on the bees on Saturdays. We didn't really check. We just fed.
Last week was the first time for us to really go through the hives. When I went through the hives last week, my thought was I need to requeen all of the hives. They are aggressive, and the queens are not laying in a good pattern.
It took me until this week to realize that the bees have been back-filling the brood frames with sugar water. I think the laying problem and aggression may be because of me. We've given them more frames and stopped feeding them, but I think it is too late. We've already had one hive swarm and may soon lose a second swarm.