[CANUFNET] Beech Bark Disease

[Kowalyk, Bohdan (MNR)]

I do not believe that proactive removal of representative but reportedly
disease-susceptible trees that are currently in good condition would be
a general recommendation.  They are not yet hazards and could have some
resistance.
 
Bohdan Kowalyk, R.P.F.
OMNR Aurora District Forester
905-713-7714
 
 
________________________________

From: canufnet-bounces at list.web.net
[mailto:canufnet-bounces at list.web.net] On Behalf Of Koskinen, Jennifer
Sent: Friday, February 24, 2012 3:35 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 <http://www.stantec.com>  
 
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