Looks like a Red rust coloured discolouration on an oak

[davidjm55]

A couple of days ago I was in a woodland area on an estate near Pattingham

and one of the guys there showed me a medium sized oak tree that had what looked like a long rust coloured streak on one side of the stem. He said that he had recently noticed quite a few trees with this discolouration and asked me if I knew what it was. The tree appeared to be OK, there were no signs

of dieback an the crown appeared to be normal. The only thing I noticed was that there appeared to be a little bit of 'seepage' at a few points on the outer bark but there were no fissures or holes in the bark. I said I'd find out but I can't seem to identify it. Does anyone know what it could be? I'd really appreciate a bit of advice. It was raining a bit at the time and I didn't take a picture but I was hoping that someone might be able to help.

Thanks

David

[Paul Barton]

Hi David,

 

It sounds like the trees could be displaying symptoms of acute oak decline. I've attached a paper about it for you.

 

Paul

Acute Oak Decline.pdf

[davidjm55]

Thanks for the feedback Paul, I'll pass the info on to the Estate Manager.

Regards

David