On week one, the hive appeared healthy and well. little brood. fall season.
On week three, only the queen and about 100 bees remained. No brood. Plenty of honey. fall season
had just treated for mites and nosema. No dead bees in or in front of hive.
On week five, hive with 1/2 inch of "sawdust" apearing piles of fine wax flakes. Very attractive to visiting bees and lots of dead bees in the hive. Sticky "sawdust" (prob wax) everywhere.

I removed it from the other nearby healthy hives and am not sure what the sawdust appearing wax particles are all about. I assume CCD initially. No evidence of mite overgrowth, or AFB, moths, etc.