Treatment for green ash

Asked March 19, 2017, 2:23 PM EDT

Last my ash tree leafed out just fine. I went away for two weeks. When I returned to tree was denuded. Then it re-leafed. Throughout the summer it dropped leaves but did not completely defoileate. We had a very cold and wet spring. The leaves look like anthracnose along with many dead small limbs. Now in early spring before budbreak I am seeing small leisions in the bark and small holes in these spots. I have also seen a very small number of woodpeckers. This could mean emerald ash bore. I really want to keep this tree It is at least 75 years old an very large and 60 to 70 feet. I understand their is a treatment for the bore an injection into the bark. I would like to know the chemical and the time and procedures to accomplish this Or is it to late and I should just remove the tree. If it is anthracnose. It's not possible to spray

Prince George's County Maryland emerald ash borer trees green ash saving ash tree

1 Response

It is very possible that your tree has emerald ash borers, based on your description *(though you can also send us photos.) If more than a fourth of the tree is infested, it may not be possible to save it. Trees can be chemically treated, but that must be done by a tree service company.

We're recommend that you have an arborist certified by the International Society of Arboriculture (ISA) take a look at it. Many tree service companies have such arborists on their staff, and they usually will come out and assess and diagnose the tree for no charge. (Only a charge if work is done.) To find a certified arborist near you, follow t he prompts on the ISA website:

There is much more helpful information about emerald ash borer on our website. Just put it in our website searchbox.