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Black Walnut Bark

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From: cheri burke City: studio city, NY
We have a mature black walnut tree in our yard that has a trunk diameter of atleast 30 inches. In the last few months I have noticed the bark turning blackish and falling off in large pieces. It is especially apparent at the base of the tree but seems to be traveling up the trunk. Is this rot? What do I do? The leaves and fruit seem very healthy, but I am very concerned about the tree. thank you
	Extension Message From: Jay Hayek Extension Specialist, Forestry Department of Natural Resources and Environmental Sciences jhayek@illinois.edu
Greetings Cheri and thank you for your question. Unfortunately, your question requires an on-site visit and evaluation by a tree care specialist (forester, certified arborist, horticulturist, entomologist, or pathologist). Regrettably, I cannot provide an effective answer to your question via the limited information provided above. More often than not, most insect and disease questions require hands-on assessment and evaluation...sorry. Please try these websites for local contacts: http://www.dnr.cornell.edu/ext/forestconnect/ http://www.dec.ny.gov/lands/309.html
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