Thirty year old oak

Asked July 28, 2016, 4:02 PM EDT

My oak tree is about 30 years old. At the trunk about 8 feet up it has black stuff coming out. Do you know what that could be?

Lake County Florida

1 Response

Please attach some pictures to this post so I can help you. It may be a canker of some sort, but without seeing the symptom, I really can't guess.