recommendations for mountain ash

Asked August 30, 2017, 11:52 PM EDT

My mountain ash is quite unwell. I've included photos of the trunk and leaves. I'm especially concerned about the exposed portion of the trunk where the bark is gone. Can you please advise me on how to save my tree?

Washington County Minnesota diagnosis of plant problems mountain ash lost bark horticulture

1 Response

It's possible that the tree is beyond recovery and should be removed. Here is a tool you can use to evaluate that possibility:
https://extension.umd.edu/learn/how-do-you-decide-when-remove-tree

We suggest asking a certified arborist to evaluate the tree's health onsite and recommend a course of action.

Master gardeners are volunteers who do not provide on-site consultation at private homes as it competes with our industry partners.

A great resource for finding a local lawn and landscape professional is the Minnesota Nursery and Landscape Association website: http://www.mnla.biz. You can also find a certified arborist in your area through the International Society of Aboriculture: http://www.isa-arbor.com/findanarborist/arboristsearch.aspx

This information may also be useful if you decide to hire an arborist:

How to hire a professional arborist to help care for your landscape trees
http://www.extension.umn.edu/garden/yard-garden/trees-shrubs/how-to-hire-a-professional-arborist/