Queenless hive, capped queen cells, but no drone brood
I've got a hive – one of my strongest – that seems to have lost it's queen. Can't find any uncapped brood but found 4 capped queen cells.
Normally I'd just allow the hive to go ahead and requeen itself, but I haven't seen a single cell of drone brood all season, in any of my hives.
Should I just go ahead and purchase a mated queen, or wait it out? Shouldn't I have seen drone brood by now?