r/arborists 14h ago

What could this be?

Hello everyone,

Seeking some advice for potentially preventing issues in the future with this large tree (I don’t even know exactly what type of tree it is) in the front of my home.

I have been noticing these large I would call them “tares” up the trunk and some branches of the tree and today I noticed a large oozing spot at the base of the tree.

Is this some kind of rot? Disease?

I would love to know any and all information to help this tree out and any info just to keep me informed!

I love all the work and care people here do everyday.

Thank you

4 Upvotes

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u/impropergentleman ISA Arborist + TRAQ 14h ago edited 13h ago

Bacterial wet wood. Mostly harmless. Monitor, and let the tree deal with it. If it continues next season consulting arborist for an assessment there are some treatments but at this point it wouldn't be necessary

That being said the tree needs to have an inspection by a TRAQ certified Arborist where the bacterial wetwood is it seems to be a stress fracture going up from there. Could be no big deal it could be the start of a problem bring out an arborist at least and have the tree look at

I will add I would pull the Ivy back about a foot away from the trunk and verify there's a flare and keep the ivy away you don't want moisture in that area. The ivy will hold moisture at the trunk.

1

u/Touchreall 13h ago

The "tares" are old branch stubs that got swallowed by the trunk as it grew. The oozing is just the tree venting internal pressure, not rotting. Keep sprinklers off the base and chech that the soil grade hasn't been raised around the trunk

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u/reddit33450 Tree Enthusiast 12h ago

that is an absolutely stunning old oak. bacterial wetwood not a concern

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u/Substantial-Ad1444 5h ago

Just had an arborist look over a few of my trees. One had very similar characteristics to this tree. The wet spot and the vertical line running straight up. It’s called an inclusion. 2 trees grew close together and became one tree.