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nafex - Re: [NAFEX] Re: chestnuts

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  • From: Heron Breen <breen@fedcoseeds.com>
  • To: halgren@msu.edu, North American Fruit Explorers <nafex@lists.ibiblio.org>
  • Cc:
  • Subject: Re: [NAFEX] Re: chestnuts
  • Date: Wed, 16 Jun 2004 17:53:04 -0500


Thanks Rob, I like what you are saying here. Just to Keep Hope Alive, can
anyone
dig up an example where human breeding endeavors restored an endangered wild
tree
or other plant population to breeding levels and successful repopulation? I
am
having trouble recalling an instance. Maybe something in Lebanon with the
Cedar,
or Israel?
Heron Breen
ps actually, I think it may be mushrooms. Some of the medicinal mushrooms are
rare
to near extinct, but many are now cultivated in the wild as well in grow
'labs'.
But, those with root relationships with trees/other plants have been near
impossible to do so. Also, mushrooms are not plants! "Breathe" oxygen and
"exhale"
carbon dioxide just like us, by the way!
On Wed, 16 Jun 2004 12:44 , Rob Halgren <halgren@msu.edu> sent:

>
>> > >>
>
> For example the Green Ash, which has been almost exterminated by
>emerald ash borers in SE Michigan? You won't find an ash bigger than a
>few inches in diameter in a large portion of the state - the ones that
>the borers didn't get the state is cutting down to prevent the spread of
>the critter. I'm not sure they are succeeding. So, since a lot of
>those ash trees were planted to replace american chestnut and elm, it
>seems only fitting to replace them with blight resistant chestnut. I'm
>not too worried about our 'natural' forests in michigan - most of them
>are a)managed, and b)pretty diverse. I'm sure that blight resistant
>chestnut would be planted in these managed woodlots, it will spread from
>there (assuming there are any unmanaged woodlots by then).
>
> Of course at some point people will get smart and start planting a
>diverse arrangment of street trees. I lost 5 large elms last year to
>dutch elm disease (or something like it - could have been another
>pathogen) - because 40 years ago someone thought it would be nice to
>have every shade tree in the yard the same species. Now if he had
>planted two or three species I might still have some trees. I still
>have a box-elder, but nuclear winter wouldn't kill those. My inlaws
>live in an older subdivision where every other street was planted in
>blocks - so some streets have just been completely denuded of ash trees,
>which they are replacing with maples, of course. Exploding maple
>disease will take care of that in 10 years, probably.
>
> >--
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