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<DIV><SPAN class=135210915-19012010><FONT size=2
face=Arial>Hello,</FONT></SPAN></DIV>
<DIV><SPAN class=135210915-19012010><FONT size=2
face=Arial></FONT></SPAN> </DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN class=135210915-19012010><SPAN
class=135210915-19012010>I am uncertain of the toxicity of the fruit, however,
those using Ohio Buckeye may want to be mindful of the following.
In addition to toxicity to the public, there may be concerns regarding its
toxicity on the biological functions of aquatic or semi-aquatic organisms
(plants, invertebrates, amphibians, fish, etc.). If the toxins from the fruit
(which can be leached during decomposition) are entering water bodies,
particularly sensitive ones, via stormwater runoff is and are in a high enough
concentration or particularly toxic, could have long-term effects on aquatic
organisms. If the trees are being planted adjacent to a water body or other
natural area with sufficient water supply or soil moisture to allow mobility of
the toxins. There are a number of plant-derived toxic chemicals that can
adversely effect organisms if allowed to enter an organisms body (e.g.
ingestion, absorption, etc.).</SPAN></SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN
class=135210915-19012010></SPAN></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN class=135210915-19012010>Also offered
for future consideration. I checked the Weediness score in the Floristic Quality
Assessment publication (MNR 1995) for Ohio Buckeye (Aesculus glabra). The
Weediness score is a rating system (assigned by a panel of leading botanical
experts in Ontario) to indicate a non-native plants level of invasiveness. The
Weediness score ranges from -1 (least invasive) to -3 (most invasive). Ohio
Buckeye has a score of "-1" which is for non-native plants that have little or
no impact on other vegetated areas. Understanding that in many instances
non-native plants have a greater tolerance and resilience to growing conditions
in built environments (i.e. paved streetscapes, parking lots, etc.),
it should at least be a primary goal for those using non-native
plants to avoid those that have a Weediness score of "-2" or
"-3".</SPAN></FONT></FONT></DIV>
<DIV><FONT size=2 face=Arial><SPAN
class=135210915-19012010></SPAN></FONT> </DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<P style="MARGIN: 0cm 0cm 0pt"><B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt">Les
Misch</SPAN></B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt"><BR>Principal/Senior
Ecologist</SPAN><?xml:namespace prefix = o /><o:p> </o:p></P>
<P style="MARGIN: 0cm 0cm 0pt"> <o:p> </o:p></P>
<P style="MARGIN: 0cm 0cm 0pt"><B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: #003399; FONT-SIZE: 10pt">AET
Group Inc.</SPAN></B><SPAN
style="COLOR: green; FONT-SIZE: 10pt"><BR></SPAN><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: black; FONT-SIZE: 10pt">531
Wellington Street North</SPAN><o:p> </o:p></P>
<P style="MARGIN: 0cm 0cm 0pt"><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; COLOR: black; FONT-SIZE: 10pt">Kitchener,
ON N2H 5L6<BR>T 519.576.9723<BR>F
519.570.9589</SPAN><o:p> </o:p><o:p></o:p></P>
<P style="MARGIN: 0cm 0cm 0pt"><FONT size=2
face=Arial>lmisch@aet-group.com</FONT></P>
<P style="MARGIN: 0cm 0cm 0pt"><FONT size=2
face=Arial>www.aet-group.com</FONT></P>
<P style="MARGIN: 0cm 0cm 0pt"><FONT size=2 face=Arial><o:p></o:p></FONT></P>
<BLOCKQUOTE>
<DIV dir=ltr class=OutlookMessageHeader align=left><FONT size=2
face=Tahoma>-----Original Message-----<BR><B>From:</B>
canufnet-bounces@list.web.net [mailto:canufnet-bounces@list.web.net]<B>On
Behalf Of </B>Payne, Mark<BR><B>Sent:</B> January 19, 2010 9:04
AM<BR><B>To:</B> Canadian Urban Forest Network<BR><B>Subject:</B> Re:
[CANUFNET] Ohio Buckeye, Aesculus glabra,Tree to be used on Public Property
and if so how? Fruit toxicityissue<BR><BR></FONT></DIV>
<DIV dir=ltr align=left><SPAN class=776510014-19012010><FONT color=#0000ff
size=2 face=Arial>Peter,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=776510014-19012010><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=776510014-19012010><FONT color=#0000ff
size=2 face=Arial>Please provide more information on the toxicity of the
fruit. Your link didn't come through.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=776510014-19012010><FONT color=#0000ff
size=2 face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=776510014-19012010><!-- Converted from text/rtf format -->
<P><I><FONT color=#000080 size=2 face="Century Schoolbook">Mark Payne, MSc.
QPRA</FONT></I><BR><I></I><I><FONT color=#000080 size=2
face="Century Schoolbook">Environmental Research and Policy
Analyst</FONT></I><BR><I></I><I><FONT color=#000080 size=2
face="Century Schoolbook">Environmental Health
Team</FONT></I><BR><I></I><I><FONT color=#000080 size=2
face="Century Schoolbook">Public Health</FONT></I><BR><I></I><I><FONT
color=#000080 size=2 face="Century Schoolbook">York
Region</FONT></I><BR><I></I><I><FONT color=#000080 size=2
face="Century Schoolbook">465 Davis Drive, Suite
240</FONT></I><BR><I></I><I></I><I><FONT color=#000080 size=2
face="Century Schoolbook">Newmarket, ON L3Y 2P1</FONT></I><BR><I></I><I><FONT
color=#000080 size=2 face="Century Schoolbook">(905) 895 4511</FONT><FONT
face="Times New Roman"></FONT> <FONT color=#000080 size=2
face="Century Schoolbook">x4511</FONT></I><BR><I></I><I></I><I><FONT
color=#000080 size=2 face="Century Schoolbook">toll free 1 (877) 464-9675
x4511</FONT></I><BR><I></I><I></I><I><FONT color=#000080 size=2
face="Century Schoolbook">fax (905) 836-8315</FONT></I> </P>
<P><B><FONT size=1 face=Arial>This e-mail and any attachments may contain
confidential and privileged information. If you are not the intended
recipient, please notify the sender immediately by return e-mail, delete this
e-mail and destroy any copies. Any dissemination or use of this information by
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Unless otherwise stated, opinions expressed in this e-mail are those of the
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employer.</FONT></B></P></SPAN></DIV><BR>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B> canufnet-bounces@list.web.net
[mailto:canufnet-bounces@list.web.net] <B>On Behalf Of
</B>pwynnyczuk@richmondhill.ca<BR><B>Sent:</B> Tuesday, January 19, 2010 7:35
AM<BR><B>To:</B> Canadian Urban Forest Network<BR><B>Subject:</B> [CANUFNET]
Ohio Buckeye, Aesculus glabra, Tree to be used on Public Property and if so
how? Fruit toxicity issue<BR></FONT><BR></DIV>
<DIV></DIV><FONT size=2 face=sans-serif>A concern was brought my attention
respecting the use of this non-native tree as a street tree. Attached is
the link associated with the information presented.</FONT> <BR><BR><FONT
size=2 face=sans-serif>1) Is this tree currently part of your inventory and if
so, have you had to address the issue and how?</FONT> <BR><BR><FONT size=2
face=sans-serif>2) If using this species, have any of the Nurseries you
purchased from advised you of this fruit toxicity issue?</FONT>
<BR><BR><FONT size=2 face=sans-serif>Our situation is we have recently
introduced this tree in our pallette of street trees and now need some further
research on how to reasonably address the issue. </FONT> <BR><FONT
size=2 face=sans-serif>Please advise on this matter as it may have
implications beyond the purchase and planting of the trees, as it could
affect Growers and Nurseries.</FONT> <BR><FONT size=2
face=sans-serif>Regards,<BR>Peter Wynnyczuk</FONT> <BR><BR><FONT size=1
face=sans-serif>Urban Forestry Supervisor</FONT> <BR><FONT size=1
face=sans-serif>Town of Richmond Hill</FONT> <BR><FONT size=1
face=sans-serif>Parks, Recreation and Culture Department</FONT> <BR><FONT
size=1 face=sans-serif>Telephone: 905 780-2930</FONT> <BR><FONT size=1
face=sans-serif>Fax: 905 884-0935</FONT> <BR><FONT size=1
face=sans-serif>Internet: pwynnyczuk@richmondhill.ca</FONT>
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