>A question I have is if I find even 1or 2 relatively high mite counts in a yard of 24 hives is it best to treat > the whole yard? That is a logistics/economic decision. Once you start running enough colonies, you generally start managing by the yard, or by the entire operation, since it takes too much time to manage every hive individually. Also, if one is breeding from one's stock, then individually treating hives then makes it impossible to compare them later for innate mite resistance. If I treat one hive in my operation, I treat every hive identically at the same time, so that I can later select breeders from a pool that has all undergone identical treatment. -- Randy Oliver Grass Valley, CA www.ScientificBeekeeping.com *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html