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  • From: "Mike Levine" <>
  • To: "North American Fruit Explorers" <>
  • Subject: Re: [NAFEX] monoculture
  • Date: Fri, 31 Oct 2003 14:08:01 -0500

I agree, in my town so far the pin oaks are fine, but we used to have elms
all over the place until various diseases took them out. They replaced all
the elms with ashes and I'm right in the middle of the emerald ash borer
quarantine area. It's amazing how rapidly they are dying out. An estimated
40% of our trees are ashes. I guess this should help the oaks a little by
providing them more light. The devastation is comparable to losing the

Mike Levine
Ann Arbor, MI
zone 5b

----- Original Message -----
From: "Lucky Pittman" <>
To: "North American Fruit Explorers" <>
Sent: Friday, October 31, 2003 10:13 AM
Subject: [NAFEX] monoculture

> At 09:41 PM 10/29/2003 +0000, Tanis wrote:
> >But don't all the horrors listed in this posting happen in this country
> >too ?
> Sure they do, and it's not just with fruiting/edible plants.
> For the last few years, here in my little town, I've been noticing a
> burgeoning epidemic consisting of a double-whammy of bacterial leaf scorch
> and heavy infestation of gouty & horny stem/branch galls on pin oaks that
> are fairly quickly taking out large number of these trees in street &
> residential plantings.
> Pin oak(Q.palustris) is a nurseryman's dream - easy to grow from readily
> available acorns, grows & calipers rapidly, transplants readily as a
> large specimen, and has consumer recognition. But, when EVERYONE plants
> one in the yard, and the cities use them almost exclusively as their
> tree selection, they've set the stage for virtually unhindered spread of
> one or more potential pathogens throughout the population.
> Lucky
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