<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Susan - many thanks for sharing this wisdom.<div class=""><br class=""></div><div class="">Considering what a valuable species ash is, especially to indigenous populations, we might consider ways in which we could keep planting experimentally.</div><div class=""><br class=""></div><div class="">If one things back to <i class="">Ulmus americana</i> and that fact that isolated trees did survive, to this day, the DED obliteration, one can never assume that all ash trees in all situations will succumb to EAB.</div><div class=""><br class=""></div><div class="">When we in NYC were dealing with ALB, one of the hopes we had for research which was never realized was why some <i class="">Acer</i> such as <i class="">platanoides </i> or <i class="">saccharum</i> or <i class="">saccharinum</i> survived. What was it that ALB determined in the mating feeding that persuaded it to move on? Did it try to feed or did pheromones dissuade it? It would have been very interesting to have a better understanding of why some trees did not appeal even though they were greatly favored hosts and in immediate proximity to ones that were devoured</div><div class=""><br class=""></div><div class="">There is always a great deal that we just don’t know.. </div><div class=""><br class=""></div><div class="">If we could continue to plant ash in greatly isolated settings with highly supportive site preparation, planting and establishment criteria and observe what happens, it would be very educational and might provide a mechanism with which to retain the species for a time when EAB is no longer a threat.</div><div class=""><br class=""></div><div class="">Naomi Zürcher</div><div class="">Arbor Aegis</div><div class="">Urban Forester / Consulting Arborist</div><div class="">Luzern Switzerland<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Nov 3, 2021, at 5:52 PM, Susan Mentis via CANUFNET <<a href="mailto:canufnet@list.web.net" class="">canufnet@list.web.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div style="margin: 0cm 0cm 0.0001pt; line-height: normal; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">Lorraine
thank you for voicing a pertinent question to the Urban Forest Network
especially with your twenty five years of “Growing Wild”! I commend you Andrew
for not “mudding the waters” but being forthright in the policy and practises Urban
Foresters should challenge. <span class=""></span></span></div><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri",sans-serif"><span style="font-size:12pt;font-family:"Times New Roman",serif" class=""><span class=""> </span></span></p><div style="margin: 0cm 0cm 0.0001pt; line-height: normal; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">I suggest
being farsighted, not short-sighted. Over the centuries the ash tree has survived
from a range of pests, diseases, floods, and ice and wind storms. We don’t know
yet if the Emerald Ash Borer will be eradicated from Canada or if a cycle of
infestation and mortality will continue forever. “For the time being” attitude stops
the clock for future generations who may never know the benefits of a mature ash
tree for community or diversity in ecosystems. <span class=""></span></span></div><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri",sans-serif"><span style="font-size:12pt;font-family:"Times New Roman",serif" class=""><span class=""> </span></span></p><div style="margin: 0cm 0cm 0.0001pt; line-height: normal; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">“Planting
a young tree only to see it succumb just as it reaches some stature” can be a
property owner’s or municipality’s option - a choice. Ash trees provide shade,
excellent leaf mulch, food source for frogs, habitat for wildlife and their harvested wood is a
renewable material of the future. <span class=""> </span>We can
advocate an approach to value and invest in our trees whatever their lifespan.<span class=""></span></span></div><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri",sans-serif"><span style="font-size:12pt;font-family:"Times New Roman",serif" class=""><span class=""> </span></span></p><div style="margin: 0cm 0cm 0.0001pt; line-height: normal; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">I say invest
because it will involve components of time, energy and money. Resources are
being used to bank ash seeds for fifty years in hopes that the Emerald Ash Borer will be eradicated from Canada. <span class=""> </span>Time
lost. It is the time frame needed to document and research the resilience of ash
species from prolonged <i class="">Treeazin</i>
treatment and / or natural controls and / or whether their seedlings have developed a resistance to EAB,
pests or disease or the effects of climate change. <span style="font-size:12pt;font-family:"Times New Roman",serif" class="">Is scientific research over and out for the ash species?</span>
<span class=""></span></span></div><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri",sans-serif"><span style="font-size:12pt;font-family:"Times New Roman",serif" class=""><span class=""> </span></span></p><div style="margin: 0cm 0cm 0.0001pt; line-height: normal; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">For those
of us with ash on private property who have ventured down the costly <i class="">Treeazin</i> path, we live through the
seasons with the future in mind and a hypothesis to address. To treat or not
treat our mature trees who have contributed to the urban forest for 100 years? To
recognize impending mortality from EAB and plan plus save dollars for removal? Harvest the wood
instead of chipping its old growth of unique properties into mulch? Maintain
the new generation of seedlings that have found their place in the garden and
surprisingly grow as saplings taller and healthy each year? Utilize the
saplings to monitor for the pending cyclical return of EAB? Wait and watch? Remove or not?<span class=""></span></span></div><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri",sans-serif"><span style="font-size:12pt;font-family:"Times New Roman",serif" class=""><span class=""> </span></span></p><div style="margin: 0cm 0cm 0.0001pt; line-height: normal; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">Decisions
on a small scale, yet these trees are the last of our dwindling legacy that
still and should have a role to play in natural history. Without action and applied
knowledge now, is the entire <i class="">Fraxinus</i>
genus to be buried as “once were” in horticulture and arboriculture documents and
as an extinct footnote in <i class="">Trees in Canada?
</i><span class=""></span></span></div><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri",sans-serif"><span style="font-size:12pt;font-family:"Times New Roman",serif" class=""><span class=""> </span></span></p><div style="margin: 0cm 0cm 0.0001pt; line-height: normal; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">This is happening
on our watch, our timeline when forests are impacted by devastating climate effects and all
urban trees are under added pressure from land development and especially
infill development in neighbourhoods. If Urban Foresters and Arborists don’t demonstrate the
value of the ash today, then their significance within cultural history is lost
to next generations. <span class=""> </span><span class=""></span></span></div><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri",sans-serif"><span style="font-size:12pt;font-family:"Times New Roman",serif" class=""><span class=""> </span></span></p><div style="margin: 0cm 0cm 0.0001pt; line-height: normal; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">Don’t
rely on government resources and take some action. “Right tree, Right place!” Go
ahead, plant an ash tree there. Nurture it, monitor it, document it, share the experiment and pass it on to next generations.
Use your knowledge and speak to youth, neighbours, students and community about
tree plant health and the dynamics of ecosystems. Show them a live majestic mature ash tree today. Afford them the opportunity to embrace one as it may never happen again in their
lifetime and woefully in mine too!<span class=""></span></span></div><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri",sans-serif"><span style="font-size:12pt;font-family:"Times New Roman",serif" class=""><span class=""> </span></span></p><div style="margin: 0cm 0cm 0.0001pt; line-height: normal; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size:12pt;font-family:"Times New Roman",serif" class="">Willing
to share ash seedlings.</span></div><div style="margin: 0cm 0cm 0.0001pt; line-height: normal; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><br class=""></div><div style="margin: 0cm 0cm 0.0001pt; line-height: normal; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Susan Mentis</div><div style="margin: 0cm 0cm 0.0001pt; line-height: normal; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Mississauga, ON<br class=""></div><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:"Calibri",sans-serif"><span style="font-size:12pt;font-family:"Times New Roman",serif" class=""><span class=""></span></span></p>
</div><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Nov 3, 2021 at 4:09 PM Oliver Reichl via CANUFNET <<a href="mailto:canufnet@list.web.net" class="">canufnet@list.web.net</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto" class="">If you can find any, I’ll suggest that its okay to plant blue ash (F. quadrangulata), which EAB doesn’t seem to like, but pass on the rest.</div><div class=""><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Nov 3, 2021 at 3:20 PM Andrew Almas via CANUFNET <<a href="mailto:canufnet@list.web.net" target="_blank" class="">canufnet@list.web.net</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr" class=""><div dir="ltr" class="">Hi Lorraine,<div class=""><br class=""></div><div class="">Based on the conversations that I have had with numerous municipal employees in southern Ontario, I would say that there is nearly a consensus that planting ash trees is a waste of resources given the extremely high mortality due to EAB (within 6 years of infestation, more than 99% of the ash trees are dead (Klooster et al. 2014; Knight et al. 2013), and I think many of us are still feeling some PTSD from seeing so much of our urban canopy destroyed in such a short window of time. </div><div class=""><br class=""></div><div class="">There is another intriguing point of view which has been espoused by some, such as University of Delaware entomologist Doug Tallamy in his 2020 book "Nature's Best Hope" that we should continue to plant ash and retain non-hazardous ash both on public and private property as a means of retaining ash based aspects of our food web (for instance, insects which can only be found on host ash trees), but also to identify and maintain natural resilience so ash trees may thrive in the future. I recognize that this is a difficult scale of objective to manage when making site specific planting decisions, but it is an argument against policies such as you have outlined in the City of Toronto which takes an extirpation approach to ash, which if expanded to all Ontario municipalities, counteracts any attempt at identifying natural resistance. The challenge of course is that realistically there is almost never going to be resource-based support for planting something which has a less than 1% chance of surviving once infested.....</div><div class=""><br class=""></div><div class="">I hope that helps to 'muddy the waters'!</div><div class="">Andrew</div></div></div><br class=""><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Nov 3, 2021 at 7:24 AM Lorraine Johnson via CANUFNET <<a href="mailto:canufnet@list.web.net" target="_blank" class="">canufnet@list.web.net</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr" class=""><div dir="ltr" class=""><div class="">Hi all,</div><div class=""><br class=""></div><div class="">Apologies if this question has already been addressed by the group.</div><div class=""><br class=""></div><div class="">I'm wondering whether or not you are recommending (or advising against) the planting of ash trees in Ontario at this time?</div><div class=""><br class=""></div><div class="">I'm aware that some municipalities (Toronto, for example) have bans on the planting of ash trees on City-owned property, but my question relates to recommendations for private land-holders.</div><div class=""><br class=""></div><div class="">Ash trees are still for sale at nurseries. Should people plant them or not in Ontario? </div><div class=""><br class=""></div><div class="">I'm assuming no, but wonder if there is consensus on this.</div><div class=""><br class=""></div><div class="">With thanks in advance for your thoughts,</div><div class="">Lorraine Johnson</div><div class="">Toronto, Ontario</div></div></div></blockquote></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
</blockquote></div><br clear="all" class=""><div class=""><br class=""></div>-- <br class=""><div dir="ltr" class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div dir="ltr" class=""><div dir="ltr" class=""><div class="">
<span style="line-height:115%;font-family:"Times New Roman"" lang="EN-CA" class=""><div class=""><span style="line-height:115%;font-family:"Times New Roman"" lang="EN-CA" class=""><b class=""><font size="4" class="">Andrew Almas</font></b></span></div></span><font size="2" face="Times New Roman" class="">Assistant Professor of Teaching</font></div><div dir="ltr" class=""><span style="font-size:12.8px" lang="EN-CA" class=""><font size="2" face="Times New Roman" class=""><span style="line-height:115%" class="">University of British Columbia</span></font></span></div><div dir="ltr" class=""><span style="font-size:12.8px" lang="EN-CA" class=""><font size="2" face="Times New Roman" class=""><span style="line-height:115%" class="">Department of Forest Resources Management</span></font></span></div><div class=""><span style="font-size:12.8px" lang="EN-CA" class=""><font size="2" face="Times New Roman" class=""><span style="line-height:115%" class="">Bachelors of Urban Forestry Program </span></font></span><span style="font-size:12.8px" class=""></span></div><div dir="ltr" class=""><span style="font-size:12.8px" lang="EN-CA" class=""><font size="2" face="Times New Roman" class=""><span style="line-height:115%" class="">(647) 529-8867</span></font></span></div></div></div></div></div></div></div></div></div>
</blockquote></div></div>-- <br class=""><div dir="ltr" class="">Oliver K. Reichl, B.E.S.(Hons)<br class="">-----------<br class="">Sent from my mobile phone.</div>
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