Hi I am in Devon, today is fairly warm. I always do a shook swarm on my hives to prevent varroa. Do you think its too early to do this yet?
I think its the anti chemical lobby pushing their agenda. The stress on a colony at this time of year must be huge doing a shook swarm, far more than treating with OA or a Varroacide. IMHO a shook swarm should be done for comb change on a strong colony or as a last ditch effort to salvage a colony with severe varoosis or EFB, not as a casual treatment for varroa.