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<body style="font: 10pt/normal Segoe UI; font-size-adjust: none; font-stretch: normal;"><div class="GroupWiseMessageBody" id="GroupWiseSection_1533138744000_ABOND@envision-tatham.com_6D9784A083F10047889340061400B217_"><div>Hello Canufnet,</div><div><br></div><div>Does anyone know of guidelines for the maximum size of a girdling root that can be safely removed? </div><div><br></div><div>The tree in question is a 88cm dbh American Elm, apparently healthy, but with a large surface root laying across one side of the trunk. No obvious symptoms of girdling yet but I imagine it is only a matter of time.</div><div><br></div><div>The municipality intends to replace a sidewalk that has heaved. Re-routing it away from this tree will require purchase of portion of the adjacent residential property so they are wondering whether it is warranted given the potential for a shortened lifespan because of the root.</div><div><br></div><div>With a road on one side and sidewalks on two other sides, I suspect that the root system has been constrained and I am nervous about destabilizing the tree. (The root is on the west side). Does anyone have typical thresholds for this sort of thing?</div><div><br></div><div>On the flip side, if the root is left in place, does anyone have any experience with how quickly a tree will die once the root starts to girdle? I've seen anywhere from 'very quick, within a few years' to 'long slow death'. I realize that there may be more girdling roots below the surface but this is the information I have to work with.</div><div><br></div><div>Thanks for your help!</div><div><br></div><div>Regards,</div><div>Alison<br></div><span id="GWSignatureSent" style="padding-right: 0px; padding-left: 0px; margin-bottom: 5px; display: block;"><span style="display: block;"><br><span style="font-size: 10pt; display: inline-block; -ms-word-wrap: normal;"><font face="Arial Narrow" size="2">
<div><font face="Calibri">Alison Bond <strong><font color="#808080" size="1">BSc MSc BLA OALA CSLA</font></strong><br>
</font><div><font size="1"><strong><font color="#808080" face="Calibri">Landscape Architect and Certified Arborist</font></strong></font></div></div><br><font face="Calibri">
</font><div><font size="1"><font face="Calibri"><strong><font size="2">ENVISION-TATHAM Inc.</font> </strong> </font></font></div><font face="Calibri">
</font><div><font face="Calibri" size="1">115 Sandford Fleming Drive, Suite 200, Collingwood, L9Y 5A6</font></div><font face="Calibri">
</font><div><font size="1"><font color="#ff00ff" face="Calibri"><a href="mailto:abond@envision-tatham.com">abond@envision-tatham.com</a></font><font face="Calibri"> I Tel: 705.445.0422 I Fax: 705.444.2327 I <font size="1">Cell: 705.994.2059 </font>I </font></font><a href="http://www.envision-tatham.com"><font face="Calibri" size="1">www.envision-tatham.com</font></a></div><font face="Calibri">
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