Horse Chestnut Trees
Q.

Horse Chestnut Tree Signs of Sickness

Zone 60482 | Anonymous added on September 2, 2017 | Answered

Hello - I have a 60 year old horse chestnut tree that has been healthy and robust for a long time. Last Fall we had professional tree service company come and prune back a lot of healthy branches as they were leaning on the roof of the house. Now, this Summer, the tree has gone from green to brown in August (ahead of cooler temps in Chicago), and has dropped major branches in the last rain storm. The wood is dry and brittle. What can I do to save this wonderful tree? Is it sick? Thank you!

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on September 3, 2017

It's possible that these problems are caused by environmental stresses, such as extreme temperatures:

http://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/pests-and-problems/environmental/scorch.aspx

The brown leaves could also be caused by a fungal disease called Horsechestnut Leaf Blotch:
http://hyg.ipm.illinois.edu/pastpest/200110g.html
https://extension.umaine.edu/ipm/ipddl/publications/5094e/
http://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/pests-and-problems/diseases/fungal-spots/guignardia-blotch.aspx

It seems this disease wouldn't be fatal to the tree by itself, but could weaken it and make it more susceptible to damage from other causes. You may want to consult an arborist or university extension agent in your area.

00
Was this answer useful?

Log in or sign up to help answer this question.
Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Horse Chestnut Trees
Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More