I'll toss my thoughts into the hat too. As I trap a lot of pollen each season I have seen how often a couple of hives in a yard have completely different color pollen then what the majority of the rest of the yard is collecting. With that in mind I might consider taking some dead bees as a sample and have a lab check for an external source of poisoning. Could it be possible this one hive got onto a source, maybe a new forage source that had also been recently sprayed? *********************************************** 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