IUBio Biosequences .. Software .. Molbio soft .. Network News .. FTP

Madrona trees

Vernon Young vjyoung at ibm.net
Sat May 30 13:18:11 EST 1998


Hi Scott,

Yes, your description of the problem with the Madrona trees is what I see here
in Puget Sound.  Glad to hear some tree may be surviving in your area.  It
appears to be a 100% loss in our area.

Do you know of any organization that may be concerned about the Madrona plight?

Vernon Young


Scott McPhee wrote:

> Let me guess, the branches and leaves are turning black? I have noticed this
> also on most of the Madrones where I live in Northern California, and on
> most madrones in south west Oregon. Now that I think about it a bit more, it
> seems that most all of the madrone in mixed evergreen woods are infected to
> some extent, while those in drier oak/madrone woodlands are for the most
> part free of it.
>
> Anyhow, I believe that it is caused by the canker fungus Botrysphaeria
> dothidea. I remember from a tree health course I took a while back the
> instructor said that it was more prevalent on drought stressed trees, which
> seems odd to me considering my above observation. Maybe those in the
> oak/madrone woodlands are used to drier conditions?
>
> Well, hope the above gives you at least a lead, you might try contacting
> someone at the Department of Forestry near you.
>
> Scott Mcphee
>
> Scott Mcphee
>
> Vernon Young wrote in message <356E45CA.E58546DF at ibm.net>...
> >I live in the Puget Sound region of Washington State.  It appears that
> >all our beautiful wild Madrona trees are slowly dying.  I can not find a
> >healthy tree any where.  Can anyone tell me what the problem is?
> >
> >Vernon Young
> >VJYoung at IBM.net
> >
> >






More information about the Plantbio mailing list

Send comments to us at biosci-help [At] net.bio.net