Bioneers’ RD Managain just interviewed Les Crowder, a veteran commercial beekeeper in New Mexico.
Crowder on varroa resistance:
I started keeping bees when I was a kid. It was then I read an article in the American Bee Journal was reading about the varroa mite in Europe, written by an Italian who was researching the Italian honeybee in its natural state. He calculated how many feral beehives there were throughout Italy. When the varroa mite arrived, many of the feral hives died.
About eight years after the arrival of the varroa mite, he noticed a general increase in the feral Italian honeybee population in the wild. He concluded that they had developed a natural resistance to the mite. And, of course, nobody applied any miticide to those bees. They’re just wild bees out in nature. So, honeybees left alone will naturally develop mite resistance.
Antibiotics interfere with their digestion, just like if we take antibiotics we get diarrhea sometimes because we kill off our natural flora. My wife just recently wrote an article for the American Bee Journal, which they declined to print, indicating that the use of antibiotics can set up conditions for things like Candida and Nocema cerranae [a pathogen tentatively linked to colony collapse disorder] in honey bees. In beekeeping, they advise you to give antibiotics to bees, every beehive, every year as a preventative. It is administered in the winter to prevent them from getting sick in the summer, which doesn’t make any sense.