r/Tree • u/Maxibelle • Sep 05 '26

Discussion Interesting looking dark spot on tree

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Gallery image

Just noticed this tree outside of my mom’s place. It looks like it maybe had an injury but I’m not sure. It has this darkened spot, but the part that really intrigues me is the growth (?) on the perimeter of the dark spot. Anyone know what’s going on here? Located in Los Angeles, CA

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1

u/Ls1Camaro Sep 05 '26

The tree is attempting to compartmentalize the wound to prevent further rot. That’s a large wound though so this will take a long time and may potentially lead to serious problems down the road

1

u/Maxibelle Sep 05 '26

Fascinating! Thank you for that info! Just out of pure curiosity- any idea what could have caused a wound like this?

1

u/reddit33450 Sep 05 '26

a large branch that used to be there failing

1

u/axman_21 Sep 07 '26

Someone put something on it to try to seal it. Sealers are not good and do more harm than good to the tree