Overly large cluster may indicate a tendency to swarm later.
Swarming tendencies begin.
Watch for queen cups queen cells
| April & May
Prime swarm months
Watch for queen cells with larvae, dry cups will always be present and do not mean a swarm is pending.
Ensure plenty of open brood cells to reduce swarm tendencies. Usually requires open brood COMB, as foundation frames take time to build and the colony doesn’t usually wait.
| June & July
Continue to watch for swarming (less likely)
| August to November
Lower chance of swarming thru the end of the year