My Aspen trees are dying
My Aspen tree is dying and I'm not sure exactly how to treat it? Any ideas?
Douglas County Colorado trees and shrubs
http://extension.colostate.edu/topic-areas/yard-garden/aspen-and-poplar-leaf-spots-2-920/http://planttalk.colostate.edu/topics/trees-shrubs-vines/1701-aspen-trees/ Aspen trees are short lived and may have reached end of life ( 25 years or so). I can't see any other obvious problems but it's impossible to tell with a distant photo. attached are some informational documents that may help.