New bark discoloration on sun valley maple - Ask Extension
Hello and happy new year! I planted a sun valley maple tree in autumn and we live in colorado. I noticed some darkening of the bark recently and was h...
Knowledgebase
New bark discoloration on sun valley maple #736891
Asked January 18, 2021, 11:37 AM EST
Hello and happy new year! I planted a sun valley maple tree in autumn and we live in colorado. I noticed some darkening of the bark recently and was hoping to have help identifying and even treating it.
Denver County Colorado
Expert Response
It's hard to diagnose with only photos to go and that oozing may be caused by several different triggers. One of the possibilities is that your Maple may be suffering from Bacterial Wetwood, a common problem that affects many different trees. Here is a fact sheet that provides details but I recommend you have a certified arborist do an on-site evaluation and recommend a management strategy.
https://extension.colostate.edu/topic-areas/yard-garden/bacterial-wetwood-2-910/
https://extension.colostate.edu/topic-areas/yard-garden/bacterial-wetwood-2-910/
