What’s killing this red oak?

[Treemuel]

That tends to be the case. Did the HO say when they noticed the decline?

They said it always has “plenty of green on it” haha. Very informative.

 

[Neill]

Hispisdus normally makes a bracket fungus.

True but it’s an annual bracket and it would not be unusual for it to not be present

 

[Brando CalPankian]

They said it always has “plenty of green on it” haha. Very informative.

Gotta love those. Is it a high value tree?

 

[Treemuel]

Gotta love those. Is it a high value tree?

It’s definitely a good size oak for the area. And it’s good a shade tree for the house (as well as the anchor point for the clothes line, of course), but it’s also a rental property on a busy highway, so I’ll have to see how invested the owners are in trying to save it.

 

[Bendroctanus]

You're a bit further south than me, so that plays into it a bit. Has hypoxylon been attributed to a primary cause of death, or is it moving in a long with the oak wilt or other vectors?

I couldn’t tell you for sure. Usually people just want it fixed or gone, and its usually gone since it has no cure. But the consensus is often just Hypoxylon. I mean, most cases with these dying Oaks, it’s never just one thing. Hypoxylon needs a compromise in the trees defenses to go anywhere. And I know I’m probably one of the only ones around to avoid any pruning on Oaks during the growing season.