> 
> My obvious first question would be to ask you how much snow melt there is in your area and how much spring rain you have had before the trees bloom? And how it has differed in the years before and after the bees used these plants. 
> Second, has it been hotter at the time of year when the trees bloom? I am wondering if it is too hot during the bloom if either the nectar available in the flower can evaporate, or if the tree "chooses" not to provide the nectar and instead retains its water for its more immediate needs. 

I live on a 4 acre pond.  Water has never been a problem.  The tulip poplar tree is about 6 feet from the waters edge.  Three holly trees are right at the edge.  I thought because we had a cool Spring, which we have not had in past years, that it may be different, but it wasn't
             ***********************************************
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