What is causing the drainage on my maple tree?

Asked August 26, 2014, 1:30 PM EDT

This is a 22-year-old maple with ooze at several of the narrow branch crotches. I am not sure if this is a contagion that should be treated or the tree removed, or innocuous slime flux.

Washington County Oregon trees and shrubs urban forestry slime flux lrk

1 Response

It is not likely a contagion. I'm less concerned about the seepage and more concerned about the crack itself. This appears to be "included bark," which is highly susceptible to failure. You should have a certified arborist look at this tree.

Visit www.pnwisa.org for information on finding an arborist near you if you don't already have one in mind.

Paul Ries
OSU Extension