North American Fruit Explorers mailing list at ibiblio

[Ginda Fisher <list@ginda.us>]

I'm curious about this as my land and my neighbors' land is heavy in both oak 
and seedling crab apples.
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Ginda
eastern ma, zone 6
 ..... Original Message .......
On Thu, 30 Apr 2009 07:34:30 -0500 "Kieran &/or Donna" 
<holycow@frontiernet.net> wrote:
>
>I remember seeing an abandoned orchard once and someone said that the trees 
>got oak rot or something like that.  I've read since that when apple trees 
>are planted on ground where Armillarea was in the oaks, they will grow till 
>they get it too.  If you take them out and try really hard to remove the 
>roots, the next batch of trees will grow fine till they finally get their 
>roots down deep enough to find the fungus, and then they die too.  There are 
>some pear rootstocks that are pretty resistant to this, others succumb 
>easily.  I think Winter Nelis is the resistant one.  It's susc to blight, so 
>plant it with the union at or below ground.  Donna 
>_____________________________________