Re: Requeen twice a year
You have to understand Dave M's business. He makes ALL his income from pollination. First from almonds, later from blueberries and cranberries. Bees moved 3,000+ miles and then moved 3-6 times more within a 'farm'. Plus there are lots of other beekeepers/hives around that carry every kind of disease/resistance known to mankind.
I am mildly surprised that Dave 'only' requeens 2X a year. I know another guy who 'brags' that every hive is requeened 10-18 times a year! (once for every pollination drop.)
The migratory commercial guys I know who raise splits in the south, come north for 1x-2x apple pollination, and then set for honey only requeen 1x a year. But that is an entirely different business than what Dave and 'other guy' are into.
Lloyd Spear, Owner of Ross Rounds, Inc. Manufacturers of round section comb equipment, Sundance Pollen Traps, and full color custom Honey labels