On Fri, 10 Jan 1997 Ted Fischer <[log in to unmask]> wrote: > I believe, as does David, that the drone trapping method is a valid > control for varroa. However, it is extremely labor intensive, and, > while probably ideal for the hobbyist with only a few colonies, would be > impossible for the large commercial beekeeper and quite difficult for a > sideliner such as myself (about 75 colonies). Hello Ted ! It's a work, ok ! but it's easier when YOUR MATERIAL IS ADAPTED. I earlier described the building frame of the German PASCHKE. All my deep brood supers (Dadant 12 frames) are equiped with a 13th frame (about British Standard 21x36 cm) which utility was first to provide a lot of selected drones for our mating place and instrumental insemination. To remove them from the production hive with 2 to 4 supers, you must only open the back door of the hive, a bit of smoke and replace the full frame by an empty one (time (not waste:) only one minute each 2-3 weeks). Jean-Marie Van_Dyck <[log in to unmask]> Lat.Long. : N:50.30' E:04.56' - Alt. : 200 m - North sea : 200 km B.P. 102 B-5000 NAMUR(Belgium) Medical school - Biochemistry dept