Why is there black ooze coming from my Crimson King maple?

Asked August 4, 2014, 12:17 PM EDT

My Crimson King maple has a 1 1/2 foot split in the bark with black oozing stuff coming from it. This is in the base of the tree. The tree itself looks good to me, but this is puzzling to me as it is not a sticky ooze. I'm hoping you can help.

Lancaster County Pennsylvania trees and shrubs lrk crimson king maples

1 Response

Based on the limited information provided, it appears that your maple may be suffering from slime flux. Below is a link that describes the disease in more detail. If you are uncertain about this diagnosis after reading the article, please respond with additional information such as photographs.

Bacterial Wetwood or Slime Flux