In regards to the use of Apistan, I have the following questions. Does anyone know what the half-life of Apistan is? If a beekeeper decided to keep one super on a "weaker" hive at the time Apistan was in place (the super being for the bees' winter consumption), when would it be safe to allow the comb in the frames in that super to again be used for honey for human consumption (if this is extractable comb)? This question came up at a recent beekeeper's association meeting and no one knew the answer. Zee [log in to unmask] _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com