Ask a Question
Notify Me On Question Update
Email this Question
I have a large, old walnut tree in my front yard. The bark on the east/northeast side of the tree is separating from the trunk. Is this a sign of disease or other problems? And can I peel the bark off the tree or will that hurt the tree?
Rate This FAQ
There has been some reports of Walnut Twig Beetle and canker diseases on walnut, however the bark peeling usually is on the south west side of the tree. Don't know without photos or other information what the cause of the peeling bark. Do not peel off the tree, more injury may occur and generally not recommended.
Here is a link to Utah Pest Newsletter on Walnut diseases. See the feature article and see if it matches the problems you are having with your walnut tree. Go to http://utahpests.usu.edu/files/uploads/UtahPests-Newsletter-Fall08.pdf
We also have Plant Pest Diagnostic Ask a Master Gardener clinics in Salt Lake County every Monday from 1 to 4pm for the months of June, July and August in our USU Training Room, 2001 South State RM S1008. You can bring in photos or samples of your plants and have volunteer Master Gardeners help advise you.
Submit Your Suggestion
Other Questions In This Topic
- I have an older crab apple tree that is focal point of my small yard. About 3 years ago the leaves became infected with powdery mildew. I have been told to not do anything with this, as it will eventually go away and the tree will fine - but over the years it has gotten much worse each spring. There are only about 60% of the leaves that are starting to look healthy by mid-June. Over all, the leaves are withered and this year we have very few blossoms. Another problem: The tree also has four large limbs that come out of the trunk. I noticed that there seemed to be wood pulp inside a place where a branch was cut off years ago. I scooped out the pulp and found that some bug or other creature has created a cavity that goes 6” into the 10-12” diameter limb and a large man’s fist could easily fit into the hole that has been created. While inspecting the hole I discovered a ¼” or so hole in the very back of the cavity, but no sign of the culprit. The limb seems to be doing fine, as the leaves on the branches from this limb are in no better or worse shape than the rest of the tree. I had my tree pruned by a highly recommended person this spring, in hopes that this would help with my powdery mildew problem. I love my tree, what should I do next about my perpetual powdery mildew problem and the unknown culprit who is dinning on my tree limb?
- I am a landscape designer and have a client in Hyrum with an orchard of about 25 misc. fruit trees. Of course the clients want low maintenance. What is a good way to control weeds in the orchard? Turf? Bare soil and cultivation? Bark mulch? If turf is a good option, what variety? Thanks.
- I would like to plant trees in my park strip, but have a gas line running through the middle. If I hand dig, is it ok to plant trees over the top of the line? What is the depth of gas lines?
- How can I tell if the spider I found is a hobo spider?
- My lawn has distinct areas that are brown next to healthy areas. The brown areas are covered in small holes.
- I would like to prune my lilac bush. What is the best time of year to do so and how much can be cut back and not harm the bush?
- I have grubs in my yard. Any suggestions?
- I have a large mature cherry tree that over the past 3 weeks has had its leaves turn from green to yellow and now die off (July). I have not changed any watering patterns. The trunk "crotch" has debris, and small crawly wormy insects. How can I treat? Is it too late? It's a lovely tree, provides great shade and privacy.