In article <[log in to unmask]>, Computer Software Solutions Ltd <[log in to unmask]> writes >Hello All > >I have recently obtained a Varroa Calculator from the British Beekeepers >Association of which I am a member. The calculator has the approval of the >British Ministry of Agriculture and Food (MAFF). <snip> When we discussed the Varroa calculator at one of our association meetings recently, we came to the conclusion that it was a good (if rather complicated) guide but produced results that were about two weeks out of date because of the gap between eggs being laid and the adult mites being available to count. -- Paul Walton Bedfordshire, England [log in to unmask]