[CANUFNET] Ash Species Rating

[JackRadecki]

Hello Alison

 

I am the chair of the ISAO Regional Plant Appraisal Committee.

This question has been brought forward to our attention.

The species rating you see comes from the Ontario Supplement to the 8th
edition which is now redundant but we continue to use the ratings until we
get guidance from the new  10 edition of the Guide for Plant Appraisal.

If the Ash trees are in an infested area such as Simcoe County we recommend
a 0 % rating unfortunately giving Ash trees no value.

 

regards Jack Radecki  RCA,  ISAO RPAC chair

 

From: CANUFNET [mailto:canufnet-bounces at list.web.net] On Behalf Of Alison
Bond
Sent: September 20, 2016 8:29 AM
To: canufnet at list.web.net
Subject: [CANUFNET] Ash Species Rating

 

Hello.  

 

I would be interested in hearing from others who have dealt with appraisal
of ash in context of EAB.

 

A contractor has encroached on EP lands and removed vegetation, some of
which includes ash.  Compensation will be determined using the Trunk Formula
Method.  The municipality is in Simcoe County (Ontario) and EAB has been
detected in several locations in the county.   ISA Ontario has listed the
species rating for Ash as 69-75%.  Given EAB, there may be justification in
lowering the species rating, but I am wondering what others have been
comfortable with.

 

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    <http://www.envision-tatham.com>
www.envision-tatham.com

 

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