Bought my house back in 2021 and noticed this black staining from an existing cut on an oak tree. Was ignorant at the time and didn’t give it much thought until over the years we’ve noticed less leaves, dead branches and whatever leaves it does produce, fall early. I’m suspect of oak wilt since the leaves are “burning” from the outer edges inward. I have another red oak tree down about 30 feet from this one which seems healthy. Any thoughts?
by Secret_Ad_4479
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