Annual Comb Replacement
Some people are concerned that chemicals built up in brood comb beeswax is causing problems effecting the bees ability to raise brood. Do you rotate out a percentage of your brood combs each year? How effective do you think doing so is?
On bee-L Jerry Bromenshenk wrote: "Simply stated, wax is a sink - all kinds of things end up in wax, and some may persist for years or decades. How does it get there? Via numerous routes - directly from hive atmospheres (gaseous materials and fine particulates), from the bees themselves, from water, from nectar, from propolis. Some contaminants sorb onto the surface of the bee body; a combination of electrostatic charge levels on the bee and particle size play a role - we've published models of this.
Chemical uptake into the hive and colony components can be very fast - in heavy metal laden areas near heavy industry, bee colonies moved onto a polluted site quickly change in terms of residues levels so fast that we couldn't really track the change - we expected it to take days, and thought we were being conservation by sampling hourly, but within a half day or less, the new colonies (hours of exposure) closely resembled the resident colonies (weeks of exposures)."
Mark Berninghausen "To float, upheld, as salt water would hold you, once you dared." Denise Levertov, poet