To Whom it may concern, I have a large amount of mature Ash trees in my yard...
To Whom it may concern, I have a large amount of mature Ash trees in my yard and noticed that 1 or 2 (they are in close proximity) of my trees are losing a large amount of green leaves. Overall the trees seem very healthy and I have not ever seen this before. I know I do not have many squirrels (at least not enough to make the mess that I find every day and am a little concerned with Ash Borer. I can take pictures and send tomorrow but thought I would run this by you to see what your thoughts are. I'm a resident of Victoria and live just a couple of miles from the U of M Landscape arboretum.
Carver County Minnesota ash trees
Anthracnose has been a common problem this year check
http://www.extension.umn.edu/garden/yard-garden/trees-shrubs/anthracnose/ for more information.