Butternut (Juglans cinerea) decline question.

Mike the Tree Doctor mlamana at bestweb.net
Sat Jan 22 07:11:46 EST 2000


My impression from speaking with a couple of pathologists is that
hypovirulence may be becoming more prevalent in the wild. Any thoughts??

Mike the Tree Doctor

Ed <ceengr at usit.net> wrote in message
news:lM8i4.2667$_t2.154835 at news1.usit.net...
> Chestnut Blight (now called Cryphonectria parasitica) does affect some
> but very mildly.  Unless the Oaks are very stressed by something else, the
> worst they are affected is swollen boles or butts.  Oaks are mainly just
> carriers of the fungus that still continuously kills the related Chestnut
> sprouts to the ground.  Mild or hypovirulent fungus strains are few and
> between in the wild.
> --
> Ed Greenwell
> ceengr at usit.net
> http://www.geocities.com/RainForest/Canopy/1436/
> http://www.angelfire.com/tn/americanchestnut/
> Starr Cash <starr at starrcash.com> wrote in message
> news:3888736c.3144375 at news2.primenetwork.net...
> > Copied following from Ency. Britannica on-line.  Looks like the
> > chestnut fungus does affect some oaks.
> >
> > chestnut blight
> >
> >  a plant disease caused by the fungus Endothia parasitica. It has
> > killed virtually all native American chestnuts (Castanea dentata) in
> > the United States and Canada and is also destructive in other
> > countries. Other blight-susceptible species include Spanish chestnut
> > (C. stavia), post oak (Quercus stellata), and live oak (Q.virginiana).
> > In Europe several oak species are affected.
> >

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