Our walnut tree is dying

Question

Our black walnut tree is dying. From the information I have read, my guess would be MLO or the Walnut twig beetle. How can we save our beautiful tree? We thank you so much for your efforts.

Answer 1

Below are some articles on thousand cankers disease and the walnut twig beetle that will help you:

https://extension.colostate.edu/pubs/insect/0812_alert.pdf
http://www.ipm.ucdavis.edu/EXOTIC/thousandcankers.html
http://www.thousandcankers.com/

For further information on cankers on trees, please visit the following link:

https://www.gardeningknowhow.com/ornamental/trees/tgen/cankers-on-trees.htm

Happy gardening!