GDD base 50 accumulated since April 1 = 32
http://agebb.missouri.edu/weather/reports/gddTable.asp
Phenology stages according to the Modified E-L system
http://door.uwex.edu/files/2010/10/ModifiedEichhornLorennzsystem.pdf
Delaware seemed to be the farthest along with some wooly buds – so I had better get those pruned asap. Others mostly with bud scales opening.