Brother Adam's Method: Closed-Population Breeding and the Buckfast Idea

In 1919 an epidemic of acarine disease — tracheal mite — had emptied most of the hives at Buckfast Abbey in Devon. Of forty-five colonies, sixteen survived, and every one of the survivors carried Italian blood. A young monk named Karl Kehrle, known in the world as Brother Adam, drew the correct conclusion from that dead-out: resistance is heritable, and therefore it is selectable. He spent the next seventy years proving it. The bee that came out the other end of that work is not a race in the way Carniolan or Italian is a race. It is a composite, deliberately assembled from stock he collected on breeding expeditions across Europe, North Africa and the Middle East, then folded together under a single ruthless standard.

I put this chapter in the curriculum for one reason. Most beekeepers, including most good ones, never breed. They buy queens, they replace failures, and they treat genetics as something that arrives in a cage from somewhere warmer. Brother Adam's method is the argument that the beekeeper standing in the yard is the selection pressure — that what you tolerate, you propagate. Combined with Michael Palmer's economics of the closed-loop nucleus yard, it is the whole of what I teach in Section VI and VII: raise your own, judge them honestly, and let the Similkameen winter do the rest of the culling.

“The greatest obstacle to progress in bee breeding is the beekeeper's own attachment to a favourite colony.”

What Buckfast actually means

There is a great deal of confusion sold under the Buckfast name, so let us fix the definition before we build on it. Buckfast is not a subspecies. Apis mellifera mellifera, ligustica, carnica and caucasica are subspecies — geographically isolated populations with distinct morphology and behaviour. Buckfast is a synthetic population: a managed mixture of those bloodlines held stable by continuous selection against a written standard. The moment selection stops, the population drifts and the name means nothing. A 'Buckfast' queen from an unselected open-mated yard is a marketing word attached to a mongrel, which may or may not be a good bee.

This is liberating rather than discouraging. It means the method transfers. You are not trying to acquire Buckfast bees; you are trying to run a Buckfast programme on whatever stock survives your climate. My breeding base in Princeton is overwintered survivor stock with Carniolan tendencies — bees that shut brood down hard in a dry August and cluster tight through a minus-twenty week. That is my raw material. Brother Adam's contribution is the discipline applied to it.