Waldemar: Do you really believe that in treating sideline outfits and commercial outfits that all the hives are broodless and no brood can be found, nor fresh eggs/larvae if looked for? Somehow I have never seen that across the board.....which could be a reason why sedondary diseases flare up with various treatments besides this. As for the apistan mentioned at bottom of recent post with paper showing acids bad, then memory retardants are better to inhibit foraging and clustering, etc. Sincerely, Dee A. Lusby Small Cell Commercial Beekeeper Moyza, Arizona http://groups.yahoo.com/group/organicbeekeepers/ ____________________________________________________________________________________ No need to miss a message. Get email on-the-go with Yahoo! Mail for Mobile. Get started. http://mobile.yahoo.com/mail -- Visit www.honeybeeworld.com/bee-l for rules, FAQ and other info ---