> > When the core temperature reaches 95 F or so, brood rearing starts. > Sounds like a reverse observation, since when brood rearing starts, core temps go up to 95F. But, I am sure Peter will help us here. I was researching degree days for garden work (planting instead of pests, which it is mostly used for), and found a cryptic comment that beekeepers are studying degree days and how they relate to bee behavior. I did a quick google search and found nothing, but wonder if anyone knows of such a study. Bill Truesdell Bath, Maine *********************************************** 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