Effect of requeening on fall populations of honey bees on the northern Great Plains of North America.

The effects of requeening honey bee colonies in the last week of July with newly mated queens, mature queen cells, or supersedure cells, on sealed brood, adult worker bee populations and colony population demographics were assessed at twelve day intervals until early December. Requeening altered brood rearing patterns, adult worker bee populations and colony demographics. Requeened colonies contained populations with higher proportions of young bees. By early December, colony population sizes converged amongst treatments and were not statistically different.