Aaron said "I'm assembling shallow frames to put in my deep bodies with the intent of cutting the capped drone brood 3 or 4 times a season. It's sanctioned, it's effective, and test data is reproducable." Yes, presumably results from a multi-year test are about to be published and are very positive. That is, a procedure to destroy drones in capped cells 3-4 times a year (in the Northeast) and therefore destroy varroa inside the cells. While waiting for publication the preliminary word is that the data will show a substantial drop in fall Varroa counts compared to controls. But...why not use drone foundation? It seems to me that is a lot more efficient vis a vis making the bees constantly draw more cells. The only downside is using frames with drone foundation requires freezer space, compared to just cutting the drone cells from the frames. Nonetheless, in 2004 I finished my 3rd year of freezing sealed drone cells. I use 1 frame per hive and can get up to 5 full sealed frames per hive a year. I am amazed at how long (in the fall) the queen will lay in these if they are made available. I have not run with controls, but my observation is that when drone brood is regularly frozen there are far fewer Varroa in the fall. This makes sense, as by freezing in April and May the small spring Varroa population is not allowed to quickly expand. -- Lloyd Spear Owner Ross Rounds, Inc. Manufacture of equipment for round comb honey sections, Sundance Pollen Traps, and producer of Sundance custom labels. Contact your dealer or www.RossRounds.com :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: -- Visit www.honeybeeworld.com/BEE-L for rules, FAQ and other info --- ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::