Recent content by David Heaf

Apart from the 2010-2015 Gwynedd survey of winter colony losses among beekeepers who treat or do not treat for Varroa, does anyone here know of any other UK surveys on treatment-free, with or without the inclusion of winter losses?

Swarm intelligence, feral honeybees and Varroa tolerance A Conference with Thomas D. Seeley, Cornell University, at Mellifera e.V. 22-24 July 2016 Kleiner Heuberghalle, Leidringen-Rosenfeld, Germany Simultaneous translation in English, French and German English language online booking form...

It might be worth your while reading Warré's book, published in 1948 (URL warre.biobees (dot) com/bfa.htm). On p 79 he shows the T-shaped top-bar like the one in your photo. He also shows the V-shaped design that is sometimes used by TBH beeks. In that 12th edition he had cllearly settled in...