Hi Bill > Murray's set-up is excellent for large yards. Or small, it is so easy, accurate and quick as well as inexpensive. If you work in pairs with one person taking lids off and putting them back and the other with the backpack the work rate is so fast that each colony is only exposed for a few seconds... the limiting factor is travelling time between apiaries. -- Regards & Best 73s, Dave Cushman, G8MZY http://melliferabees.net Email: [log in to unmask] Short FallBack M/c, Build 7.21/2.01 Son of ORAC M/c, Build 5.o1/2.o1 *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html Access BEE-L directly at: http://community.lsoft.com/scripts/wa-LSOFTDONATIONS.exe?A0=BEE-L