Been using pollen traps for 10 years+. Hesitate if they are influential in supersedure though. I think it is obvious though that if a trapped colony does supersede the consequences can be more detrimental, queen not likely to get out and even less likely to get back in. Thus one has 1) a drone laying queen or 2) laying workers and perhaps a colony started under the bottom board (from the queen that got out and couldn't get back in. IMHO these are the primary drawbacks to trapping pollen. Alden Marshall B-Line Apiaries Hudson, NH 03051 [log in to unmask] tel. 603-883-6764 _____________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com Or call Juno at (800) 654-JUNO [654-5866]