I found that one of my hives is Queenless. The hive was a package that started this year. After a checking it was clear that the queen had left or was killed by the package at some point. Yesterday I picked up a new queen from a Beek who runs about 2500 hives. He told me to at the time of requeening to put in a frame of brood too from another hive ( no brood in the queenless hive) as this will help the new queen to be accepted into the hive. This Beek states he has seen many a time that a hive will kill the new queen if they have been without a queen for a while.
Has anyone heard of this before?