Robbing, and how to stop it

By Dwight Davis, Founder

Updated October 2026

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What it looks like Why late summer What starts it Stopping it once it starts Preventing it References

Robbing turns a calm apiary into chaos in minutes, and it is almost always started by the beekeeper. It is also the reason several pieces of harvest advice exist that otherwise seem fussy.

What it looks like

Bees fighting at the entrance. Wrestling pairs on the landing board and on the ground. A frantic, directionless flight pattern around the hive rather than the steady in-and-out of foraging. Dead bees accumulating. In bad cases, wax cappings chewed away and scattered.

Robber bees hover and probe around the edges and seams of a hive rather than flying straight in, which is the tell before the fighting starts.

Why late summer

Nectar is scarce, colonies are at their largest, and foragers with nothing to forage go looking. That is the same window as most first harvests, which is not a coincidence and is why harvest advice is so insistent about covering supers.

What starts it

Open honey. A frame left standing in the yard, spilled honey, an uncovered super.
A weak colony that cannot defend a full-sized entrance.
Feeding in the open, which teaches every colony in range where free syrup is.
Long inspections in a dearth, with the hive open and smelling of honey.

This is why cleared supers go straight into a covered box. An open frame of honey in late summer is an advertisement to every forager within flying distance, and getting the bees off the supers puts that instruction in every method for exactly this reason.

Stopping it once it starts

Reduce the entrance to a couple of bee-widths so the colony can defend it. Cover the hive with a wet sheet, which disorients robbers without stopping the residents. Remove whatever started it. In a bad case, close the colony up for a day and move it if you can.

Speed matters. A robbing event that runs for an afternoon can empty a colony completely.

Preventing it

Reduce entrances on weak colonies before the dearth rather than during it. Feed inside the hive, never in the open. Keep spills off the ground. Work quickly in late summer and keep everything covered that is not currently in your hands.

References

Penn State Extension. Honey Bee Management Throughout the Seasons. extension.psu.edu

University of Georgia Extension. Honey Bees and Beekeeping (B1045). extension.uga.edu

eXtension Bee Health. Seasonality of Brood and Adult Populations; Beekeeping Equipment. bee-health.extension.org

Written from published extension guidance, not from a laboratory. Local climate, local forage and the state of your particular colony override anything general said here.