I installed my first two packages April 11 on new wax foundation. They have been building a fair amount of wild comb on the under-side of the hive top feeder, nearly filling up the space between the two wells. There was lots of syrup and quite a bit of larva in the wild comb. It was a mess to clean out and quite a few bees died in the sticky mess. I just added a second brood box (and baited it with a frame of drawn comb) and I'm hoping the additional space will be enough to keep them from building more wild comb there, but I'm thinking of putting a queen excluder under the hive top feeder so if they do build there at least it won't have brood in it. Good idea? Bad idea? Thanks for your help.