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 "That which works, persists."