I have a 5 frame nuc that seems to be getting weaker and weaker. Weaker by less/less bees in there as we move on in the season. I feed them but they don't take the feed anymore. However, had ants move in that liked the feed, so I removed the feeder (frame feeder)
There still is some eggs/larve/capped cells - but almost no stores.
Yesterday I looked and now down to say 1 1/2 lbs of bees. (Plus whatever is out in the field).
I have the entrance reduce in place down to the smallest size, just not sure.
Any good ways to give this NUC a boost? Perhaps a frame of mostly capped brood?