I would not requeen just by her slowing down when there is a dearth going on.
What is the level of their pollen and nectar collection right now? Should I say what is available for them
out there to forage on.
There are some queens that will slow down and finally to shut down when no resources are coming in. They will
start to lay when in the Fall blooms. When the hive is dwindling then not enough bees to cover the broods so she will not lay some more.
I have 2 hives in a similar situation like yours during this summer dearth going on now. So I feed them
patty and syrup since the end of July. Now that their population had pick up a little the young foragers are
bringing in some pollen. Both the Cordovan queen and the Italian queen are laying now that they once slow down
a bit. The Italian queen had slow down around the middle of July and now recently picking up. I saw 1 out of 5 to
carry pollen in today. The others are bringing in nectar because I have not been feeding this hive at all. This is a good sign after
I brushed in one frame of mixed laying workers (LWs) bees in there last week. I did not want to requeen her because she lay big eggs.
The Cordovan queen is gradually picking up since I removed many of her workers to make up more mating nucs last week. I had since added more bees from
another hive to balance things out for her. So both hives are recovering all because of the timing in feeding them during a dearth. The Fall should
be better for more resources coming in.
Even if you requeen now there have to be sufficient worker bees for the new queen so that the larvae are taken care of. I would just add more bees
into this hive to condense it into a nuc and feed them a lot to see if she will lay in 2 more weeks to check for new eggs. Hope this helps.
Don't mix foreign bees into a virgin hive. She might get balled 100% of the time! When will you ever learn, huh?