[CANUFNET] Dutch Elm Disease tolerance

[Alison Bond via CANUFNET]

Hello Canufnet:

Do you know of any research that indicates whether resistance to DED is affected by tree health/vigour?  Much of what I can find indicates that trees are being selected based on their resistance to DED but it isn't clear if the tree is just not susceptible to DED or whether it is actively fighting the disease.  If the latter, one would expect that the tree would be more prone to infection when it has been otherwise compromised (e.g., new sidewalk cut into its roots.)  Thoughts?

Thank you.
Alison

Alison Bond BSc MSc BLA   OALA  CSLA
Landscape Architect and Certified Arborist

ENVISION-TATHAM Inc.    
115 Sandford Fleming Drive, Suite 200, Collingwood, L9Y 5A6
abond at envision-tatham.com I  Tel: 705.445.0422  I  Fax: 705.444.2327  I  Cell: 705.994.2059 I   www.envision-tatham.com
 
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