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</o:shapelayout></xml><![endif]--></head><body lang=EN-CA link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span style='mso-fareast-language:EN-US'>This talk seems to be going around in circles. We have all learned about the root/shoot balance of trees. So as we have heard as trees are pruned heavily there is a compensation of top growth to balance the root system. If trees are stressed due to environmental factors there is an overall decline in trees but as trees recover they will put on epicormic growth. As we cut off roots to provide more infrastructure, then the top will dieback and also respond with epicormic growth. This I did not read in books but experienced first hand over 45 years.<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'>Jack Radecki<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US>From:</span></b><span lang=EN-US> CANUFNET <canufnet-bounces@list.web.net> <b>On Behalf Of </b>Ryan Redvers via CANUFNET<br><b>Sent:</b> March 5, 2021 8:55 PM<br><b>To:</b> Canadian Urban Forest Network <canufnet@list.web.net><br><b>Cc:</b> Ryan Redvers <redverstree@rogers.com><br><b>Subject:</b> Re: [CANUFNET] Question to mailing list members<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Epicormic growth is the reaction to some kind of damage and or stressor. It is an attempt to revitalize. One that often succeeds, with strength and purpose. The idea that these are necessary and essential is well backed here already and I support that. <o:p></o:p></p><div id="yMail_cursorElementTracker_1614995411777"><p class=MsoNormal> Often these shoots thin themselves to some degree thinking of Acer Negundo and Gleditsia.<o:p></o:p></p></div><div id="yMail_cursorElementTracker_1614995431325"><p class=MsoNormal> I know I am adding details here but I appreciate the awareness around Epicormic growth. I think it needs a new light shed on it. And largely has a new light on it already<o:p></o:p></p></div><div id="yMail_cursorElementTracker_1614995609664"><p class=MsoNormal> The term 'suckers' is worse than 'water sprouts'. Epicormic is a better term I think. Anyway with topped trees, by storm or saw, or both, we have options of utilizing and appreciating this epicormic growth, not fearing it. Saying it is weakly attached casts a generalization that applies not to all, likely few. As we do learn to accurately assess this growth we can manage through reductions, if it poses a likelihood of failure. Trees can often be retained even if they are temporarily stripped via storm, or saw or both. I know I'm preaching to the choir here but I think the misunderstanding around epicormic growth is widespread. Many species, given a decent soil bed, can thrive and adapt to severe damage, not that it is ideal but it is manageable. And they are often not given the usual luxury of terminal growth so epicormic growth is a good back up. <o:p></o:p></p></div><div id="yMail_cursorElementTracker_1614995679318"><div id="yMail_cursorElementTracker_1614995137878"><p class=MsoNormal> Thank you for the question Linda Moskalyk and sorry for the derail. I know this is beyond Elm Epicormics but I hope it gives perspective on epicormic growth.<o:p></o:p></p></div><div id="yMail_cursorElementTracker_1614995353386"><div id="yMail_cursorElementTracker_1614993519920"><p class=MsoNormal><o:p> </o:p></p></div><div id="yMail_cursorElementTracker_1614995384793"><p class=MsoNormal>Ryan Redvers<o:p></o:p></p></div><div id="yMail_cursorElementTracker_1614993520922"><p class=MsoNormal> <o:p></o:p></p></div><div id="yMail_cursorElementTracker_1614993529858"><p class=MsoNormal><o:p> </o:p></p><div id="ymail_android_signature"><p class=MsoNormal><a href="https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature">Sent from Rogers Yahoo Mail on Android</a><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><blockquote style='margin-left:0cm;margin-right:0cm;margin-bottom:15.0pt'><div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif;color:#6D00F6'>On Fri, 5 Mar 2021 at 5:47 PM, Philip van Wassenaer via CANUFNET<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial",sans-serif;color:#6D00F6'><<a href="mailto:canufnet@list.web.net">canufnet@list.web.net</a>> wrote:<o:p></o:p></span></p></div></div><div style='border:none;border-left:solid #6D00F6 1.0pt;padding:0cm 0cm 0cm 15.0pt;margin-top:7.5pt'><div id=yiv3172670556><div><div><p class=yiv3172670556msonormal>I have been working on DED for a long time and with some specific Winnipeg experience. Never heard of this!<o:p></o:p></p><p class=yiv3172670556msonormal> <o:p></o:p></p><p class=yiv3172670556msonormal>I would ask the university researcher that made the statement to please provide some scientific evidence to substantiate that. Trees don’t usually grow things they don’t need. Removing sprouts is an aesthetic driven practice, not much good to the tree as far as I can see. And could be a stress that attracts the beetles as previously mentioned here.<o:p></o:p></p><p class=yiv3172670556msonormal> <o:p></o:p></p><p class=yiv3172670556msonormal>If you receive some good information to verify this, please do pass it along. Interesting query…<o:p></o:p></p><p class=yiv3172670556msonormal> <o:p></o:p></p><p class=yiv3172670556msonormal>Cheers and have a great weekend all,<o:p></o:p></p><p class=yiv3172670556msonormal> <o:p></o:p></p><p class=yiv3172670556msonormal>Philip<o:p></o:p></p><p class=yiv3172670556msonormal> <o:p></o:p></p><p class=yiv3172670556msonormal><b><span lang=EN-US>Philip van Wassenaer, B.SC., MFC</span></b><o:p></o:p></p><p class=yiv3172670556msonormal>Urban Forest Innovations Inc.<o:p></o:p></p><p class=yiv3172670556msonormal>1331 Northaven Drive<o:p></o:p></p><p class=yiv3172670556msonormal>Mississauga ON L5G 4E8<o:p></o:p></p><p class=yiv3172670556msonormal><span lang=EN-US>Tel: (905) 274-1022</span><o:p></o:p></p><p class=yiv3172670556msonormal><span lang=EN-US>Cell: (647) 221-3046</span><o:p></o:p></p><p class=yiv3172670556msonormal><span lang=EN-US>Fax: (905) 274-2170</span><o:p></o:p></p><p class=yiv3172670556msonormal><span style='color:#1F497D'><img border=0 width=153 height=73 style='width:1.5937in;height:.7604in' id="yiv3172670556Picture_x0020_1" src="cid:image001.jpg@01D713F8.CAEB14A0" alt="UFI new logo very small"></span><o:p></o:p></p><p class=yiv3172670556msonormal><span style='color:#1F497D'> </span><o:p></o:p></p><p class=yiv3172670556msonormal><span style='color:#1F497D'><a href="http://www.urbanforestinnovations.com/" target="_blank">www.urbanforestinnovations.com</a></span><o:p></o:p></p><p class=yiv3172670556msonormal> <o:p></o:p></p><div id=yiv3172670556yqt72959><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=yiv3172670556msonormal><b><span lang=EN-US>From:</span></b><span lang=EN-US> CANUFNET <<a href="mailto:canufnet-bounces@list.web.net">canufnet-bounces@list.web.net</a>> <b>On Behalf Of </b>SOS Trees Coalition via CANUFNET<br><b>Sent:</b> March 5, 2021 2:31 PM<br><b>To:</b> <a href="mailto:canufnet@list.web.net">canufnet@list.web.net</a><br><b>Cc:</b> SOS Trees Coalition <<a href="mailto:trees@sostrees.ca">trees@sostrees.ca</a>><br><b>Subject:</b> [CANUFNET] Question to mailing list members</span><o:p></o:p></p></div><p class=yiv3172670556msonormal> <o:p></o:p></p><div><div><div><div style='margin-top:6.0pt' id="yiv3172670556gmail-:11q"><div id="yiv3172670556gmail-:11r"><div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>Here is a question that I would like to have posted to the subscribers:</span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>Has anyone heard of the need to remove watersprouts from American Elm trunks because they could be a source of entry for the elm bark beetle? We have been alerted to this by a university researcher who claims that leaving this growth on elms can leave them vulnerable to Dutch Elm disease. I have never heard of this and want to know if anyone has information to support it.</span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>Linda Moskalyk</span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>President</span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>SOS Trees Coalition</span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>Saskatoon</span><o:p></o:p></p><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p></div><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>.</span><o:p></o:p></p><div><p class=yiv3172670556msonormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'> </span><o:p></o:p></p></div></div></div></div></div></div></div></div><p class=yiv3172670556msonormal> <o:p></o:p></p></div></div></div></div></div></div></blockquote></div></div></div></div></body></html>