Wason speaks to BDN about foaming trees

The Bangor Daily News interviewed Jay Wason, assistant professor of forest ecosystem physiology, about foamy discharge from trees caused by heavy rains. “Plants and trees produce all kinds of different chemicals they use in the biological process of being alive. Certain ones have waste products that are distributed to the [outer] bark of the tree. … The rain is washing off that layer of residue the tree produces. Plants are also producing pollen [and] this is an active time of year with a lot of metabolic things going on inside the trees,” Wason told the BDN.