[CANUFNET] Beech Bark Disease

[stephen at ufora.ca]

I’ve seen them live for many years with bark signs but no ill effects.  The story I was told at a workshop is that in Quebec where the disease came a long time ago a percentage of the trees survived. I’d keep it if it’s healthy.

Stephen Smith
Urban Forest Associates Inc.
Urban Forestry and Ecological Restoration
www.ufora.ca

From: Koskinen, Jennifer 
Sent: Friday, February 24, 2012 3:34 PM
To: canufnet at list.web.net 
Subject: [CANUFNET] Beech Bark Disease

Good day,

 

To cut or not to cut?  Beech Bark Disease (scale and fungus = canker) is destroying our beech trees.  I have observed cankering on many American Beech (Fagus grandifolia) trees in forests throughout Southern Ontario.  I would definitely recommend a tree (located in/adjacent to a public/residential area) in poor condition with this canker to be removed.  But what about removing trees that appear to be in good condition, minimal to no deadwood in crown, no observed rot on the stem, But with minimal signs of infection on the bark?  Without knowing how long these ‘good condition’ trees with small patches of infection will survive should we go ahead and remove them to be proactive?  Or retain them and possibly have them die in one or two years becoming a hazard tree?

What do you guys think?  Are there any pathology tree experts out there?

 

-jk

    

 

Jennifer Koskinen, HBESfcon
ISA Certified Arborist ON-1234A
Stantec

49 Frederick Street
Kitchener ON N2H 6M7
Ph: (519) 585-7442
Fx: (519) 579-8664
jennifer.koskinen at stantec.com

stantec.com 

 

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