UKTC Archive

Re: Verticillium wilt control in Norway maple

Subject: Re: Verticillium wilt control in Norway maple
From: Phil Dye
Date: Jan 16 2021 10:22:54
______________________________________________________________________
FLAC. The Seminar, 2021. 2 days, 8 lectures, 11 hours world-class CPD
-Philosophy of tree risk assessment. -Practical hazard identification
-Trees & decay fungi: a new approach. -THREATS
-Forensic entomology. -Decision-making & tree work for risk control
-Tree morphology & retrenchment pruning. -RAVEN
13-14 May, Forest of Arden Marriott; 20-21 May, Dundee Uni Botanics
Please email enquiries@xxxxx.uk.com to register interest
______________________________________________________________________

Hi Michael,
I've considered this. While most trees are growing in grass verges which they 
share with numerous services they're one or two on wider open space. I was 
wondering if anyone had had any success with Verticilliun through treating 
the rooting area?
Best regards
Phil

Sent from Yahoo Mail on Android 
 
  On Tue, 12 Jan 2021 at 16:38, Michael 
Richardson<richardsontreecare@xxxxxx.com> wrote:   
______________________________________________________________________
FLAC. The Seminar, 2021. 2 days, 8 lectures, 11 hours world-class CPD
-Philosophy of tree risk assessment. -Practical hazard identification
-Trees & decay fungi: a new approach. -THREATS
-Forensic entomology. -Decision-making & tree work for risk control
-Tree morphology & retrenchment pruning. -RAVEN
13-14 May, Forest of Arden Marriott; 20-21 May, Dundee Uni Botanics
Please email enquiries@xxxxx.uk.com to register interest
______________________________________________________________________

Why not think about improving sol conditions by aeration, mulching etc.
Maybe a trial of a few.

Since Verticillium is often associated with poor soils that might be a
place to start.

M

Michael Richardson B.Sc.F., BCMA
Ontario MTCU Qualified Arborist
Richardson Tree Care
Richardsontreecare.ca
613-475-2877
800-769-9183

  <http://www.richardsontreecare.ca/images/Tree_Doc_logo_email.png>



On Tue, Jan 12, 2021 at 11:16 AM Phil Dye <uktc@xxxxxx.tree-care.info> wrote:

______________________________________________________________________
FLAC. The Seminar, 2021. 2 days, 8 lectures, 11 hours world-class CPD
-Philosophy of tree risk assessment. -Practical hazard identification
-Trees & decay fungi: a new approach. -THREATS
-Forensic entomology. -Decision-making & tree work for risk control
-Tree morphology & retrenchment pruning. -RAVEN
13-14 May, Forest of Arden Marriott; 20-21 May, Dundee Uni Botanics
Please email enquiries@xxxxx.uk.com to register interest
______________________________________________________________________

  Thanks Ian,
My client is a Local Authority and the trees are street trees. Infection
is such that any pruning of diseased branches would massively affect the
amenity of the trees. V.dahliae, being a soil borne fungus, spreads quite
easily among this tree population as there's reasonably heavy footfall.
They may have to bite the bullet and fell & replace.
Many thanks
Phil    On Tuesday, 12 January 2021, 14:07:57 GMT, Brewster, Ian <
ian.brewster@xxxxxxx.co.uk> wrote:

  ______________________________________________________________________
FLAC. The Seminar, 2021. 2 days, 8 lectures, 11 hours world-class CPD
-Philosophy of tree risk assessment. -Practical hazard identification
-Trees & decay fungi: a new approach. -THREATS
-Forensic entomology. -Decision-making & tree work for risk control
-Tree morphology & retrenchment pruning. -RAVEN
13-14 May, Forest of Arden Marriott; 20-21 May, Dundee Uni Botanics
Please email enquiries@xxxxx.uk.com to register interest
______________________________________________________________________

Understanding how trees become infected with this disease, the vector and
how its spread might help with a plan of action.
With Elm disease cutting the branch with symptoms (discoloration of
foliage/shepherds crook) deep below the visible disease into clean wood
with wounds showing no staining should arrest further ingress.
I hear someone recently had lopped the top of an Ash tree with Chalara and
appeared to respond well with new growth, albeit looking somewhat different.
An expensive operation for 60 Norway maple trees but ....
Understanding how trees become infected with this disease, the vector and
how its spread might help with a plan of action.
With Elm disease cutting the branch with symptoms (discoloration of
foliage/shepherds crook) deep below the visible disease into clean wood
with wounds showing no staining should arrest further ingress.
I hear someone recently had lopped the top of an Ash tree with Chalara and
appeared to respond well with new growth, albeit looking somewhat different.
An expensive operation for 60 Norway maple trees but ....

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
<uktc-request@xxxxxx.tree-care.info>
On Behalf Of Phil Dye
Sent: 12 January 2021 13:49
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Verticillium wilt control in Norway maple

______________________________________________________________________
FLAC. The Seminar, 2021. 2 days, 8 lectures, 11 hours world-class CPD
-Philosophy of tree risk assessment. -Practical hazard identification
-Trees & decay fungi: a new approach. -THREATS -Forensic entomology.
-Decision-making & tree work for risk control -Tree morphology &
retrenchment pruning. -RAVEN
13-14 May, Forest of Arden Marriott; 20-21 May, Dundee Uni Botanics Please
email enquiries@xxxxx.uk.com to register interest
______________________________________________________________________

Hi all,
Does anyone know of any effective control measures for Verticillium
dahliae  in Norway maples other than pruning out the deadwood?
I have a client with 150 Norway maples of which 60 have symptoms of
V.dahliae to some degree or other. I'm looking for an alternative to
felling. Best regards

Phil


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NPS
  -----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
<uktc-request@xxxxxx.tree-care.info>
On Behalf Of Phil Dye
Sent: 12 January 2021 13:49
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Verticillium wilt control in Norway maple

______________________________________________________________________
FLAC. The Seminar, 2021. 2 days, 8 lectures, 11 hours world-class CPD
-Philosophy of tree risk assessment. -Practical hazard identification
-Trees & decay fungi: a new approach. -THREATS -Forensic entomology.
-Decision-making & tree work for risk control -Tree morphology &
retrenchment pruning. -RAVEN
13-14 May, Forest of Arden Marriott; 20-21 May, Dundee Uni Botanics Please
email enquiries@xxxxx.uk.com to register interest
______________________________________________________________________

Hi all,
Does anyone know of any effective control measures for Verticillium
dahliae  in Norway maples other than pruning out the deadwood?
I have a client with 150 Norway maples of which 60 have symptoms of
V.dahliae to some degree or other. I'm looking for an alternative to
felling. Best regards

Phil


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