Staining inside maple tree branch - Ask Extension
Took off a (red?) maple branch that was damaged and found mysterious staining outside of damaged area shown in first picture. Second picture shows muc...
Knowledgebase
Staining inside maple tree branch #878971
Asked July 26, 2024, 9:56 PM EDT
Took off a (red?) maple branch that was damaged and found mysterious staining outside of damaged area shown in first picture. Second picture shows much less staining where branch was cut from trunk. Would like to know what causes this.
Franklin County Ohio
Expert Response
Thank you for your interesting question. The staining you see
is called Spalting caused by a fungus that attacks dead wood. It
is prevalent on distressed Maples but can occur on other tree
species. This may or may not be detrimental to the remainder
of the tree.
I have listed below several links that will explain this in more
detail. Your County OSU Extension Service is also listed should
you desire to reach out to them for their opinion on this.
If we can be of further help do not hesitate to contact us.
Thank you again for allowing us to help you with your
gardening questions. Here are some other helpful websites
that may be of interest to you:
BYGL Newsletter: http://bygl.osu.edu/
OSUE Fact Sheets: http://ohioline.osu.edu
State Master Gardener Volunteer website - http://mastergardener.osu.edu
Ask-An-Expert website - https://extension.osu.edu/ask-an-expert
Ask-A-Master Gardener website -
https://extension.osu.edu/https%3A/extension.osu.edu/ask-an-expert/ask-master-gardener-volunteer
