>Although a bit dated (2001) this study supports that suggestion.
>http://www.ent.uga.edu/bees/publications/ABJ.pdf

Thanks for the link.  

I think I may have been thinking back to that.  I recall Delaplane and others giving talks at national meetings.  These talks were apparently based on good field work but came up with answers which seemed to be, on the surface at least,  in opposition to one another.

BTW, I appreciate any studies people send me on this and any topic we discuss and I think should share a trick I just discovered for finding more:

If you have one good recent study on a topic, then go to the bibliography or reference section and copy each title in turn and paste each into a Google search pane, search, then do the next until your cup runneth over.

Since these studies tend to list one another, those exact words will be in the text of any related study.  As a result, these studies will come up at the top of the search.  Otherwise they are often number 1000+ in the list, after eBay and Amazon, etc., and we will never see them.

             ***********************************************
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

Guidelines for posting to BEE-L can be found at:
http://honeybeeworld.com/bee-l/guidelines.htm