<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:12pt">Vince (hello again!): Green Ash is native here in the Prairies (at least as far as Saskatchewan) so the range map may be a bit out. What Jeff and others are referring to is a dieback event that has affected green ash (but interestingly not red ash at least here in Prince Albert). The consensus of the SK Forest Service (myself and John Thompson) is that it is related to the exceptionally warm weather in late October 2009 (25C and more in places) followed by the exceptionally cold snap in early November 2009 (-30C or less). We think that the cambium did not have a shot at shutting down for the winter and got frozen. The result has been winter dieback affecting the crown of green ash in the city. (Daylilies and spirea were also widely affected here in PA).<br><br>The trees are showing evidence of epicormic
branching where the dieback has occurred and some trees have undergone a secondary flush of at least part of their crowns. Tough year to be an ash tree! I suspect most will survive but they will have to reform their crowns from remaining live branches which will take a few years and will look goofy but is better (and cheaper) than cutting them down and starting afresh.<br><br>Cheers,<br><br>David Stevenson, RFP<br>Forest Renewal Expert, <br>Forest Service Branch, <br>Saskatchewan Ministry of Environment<br><div><br></div><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt;"><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Vince Rutter <vince@rutterurbanforestry.ca><br><b><span style="font-weight: bold;">To:</span></b> Canadian Urban Forest Network <canufnet@list.web.net><br><b><span
style="font-weight: bold;">Sent:</span></b> Tue, June 29, 2010 7:25:45 PM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [CANUFNET] green ash decline<br></font><br>In Thunder Bay we share a prairie climate (sort of) but our green ash are thriving right now. I have noticed a few white ash that for the past 10 years at least have grown exceptionally well but this year have died back drastically.<div>
<br></div><div>If you look at the native range of green ash, it extends this far but not to the alberta Prairies. Likewise the white ash ranges not quite to here. I think Stephen is right on in thinking that this is the climate (sans global warming) keeping species distribution in check. </div>
<div><br></div><div>Vince Rutter, RPF</div><div>Rutter Urban Forestry</div><div>Thunder Bay, Ontario</div><div><br><div class="gmail_quote">On Tue, Jun 29, 2010 at 9:06 PM, For Trees <span dir="ltr"><<a rel="nofollow" ymailto="mailto:trees@fortrees.ca" target="_blank" href="mailto:trees@fortrees.ca">trees@fortrees.ca</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div lang="EN-CA">
<div>
<p class="MsoNormal"><span style="color: black;">Yes, I do concur that the problem
is widespread in Alberta from at least as far north as Grand Prairie and
through to the communities south of Calgary. </span></p>
<p class="MsoNormal"><span style="color: black;"> </span></p>
<p class="MsoNormal"><span style="color: black;">Have observed lots of
environmental damage (hail too, and other storm injuries)to many different
species of thin barked shrubs and trees as well as the Green Ash, young Elms, Birches,
and many newly planted trees everywhere I’ve been this spring in Alberta.
</span></p>
<p class="MsoNormal"><span style="color: black;"> </span></p>
<p class="MsoNormal"><span style="color: black;">Almost makes you wish for more
poplar, spruce and more native trees and shrubs to be planted here on the
prairies and foothills, eh?</span></p>
<p class="MsoNormal"><span style="color: black;"> </span></p>
<p class="MsoNormal"><span style="color: black;">Regards,</span></p>
<p class="MsoNormal"><span style="color: black;"> </span></p>
<p class="MsoNormal"><span style="color: black;"><img src="cid:1.562908555@web51303.mail.re2.yahoo.com" alt="ForTreeslogocolour" width="288" height="166"><img src="cid:2.562908556@web51303.mail.re2.yahoo.com" alt="TC_logo_English" width="179" height="76"></span></p>
<p class="MsoNormal"><span style="color: black;">Gerard Fournier</span></p>
<p class="MsoNormal"><span style="color: black;">Board Certified Master Arborist
#PR-0130BT</span></p>
<p class="MsoNormal"><span style="color: black;">Tree Canada Community Advisor-Southern
Alberta</span></p>
<p class="MsoNormal"><span style="color: black;"> </span></p>
<p class="MsoNormal"><span style="color: black;">President</span></p>
<p class="MsoNormal"><span style="color: black;">For Trees Company Ltd.</span></p>
<p class="MsoNormal"><span style="color: black;">1-877-390-TREE (Alberta toll-free)</span></p>
<p class="MsoNormal"><span style="color: black;"><a rel="nofollow" target="_blank" href="http://www.fortrees.ca/"><span style="color: blue;">http://www.fortrees.ca</span></a></span></p>
<p class="MsoNormal"><span style="color: black;"> </span></p>
<p class="MsoNormal"><span style="color: black;"> </span></p>
<p class="MsoNormal"><span style="color: black;"> </span></p>
<div>
<div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; padding: 3pt 0cm 0cm;">
<p class="MsoNormal"><b><span style="font-size: 10pt;" lang="EN-US">From:</span></b><span style="font-size: 10pt;" lang="EN-US"> <a rel="nofollow" ymailto="mailto:canufnet-bounces@list.web.net" target="_blank" href="mailto:canufnet-bounces@list.web.net">canufnet-bounces@list.web.net</a>
[mailto:<a rel="nofollow" ymailto="mailto:canufnet-bounces@list.web.net" target="_blank" href="mailto:canufnet-bounces@list.web.net">canufnet-bounces@list.web.net</a>] <b>On Behalf Of </b>Elaine Johnson<br>
<b>Sent:</b> June-29-10 1:49 PM</span></p><div class="im"><br>
<b>To:</b> 'Canadian Urban Forest Network'<br>
</div><div class="im"><b>Subject:</b> Re: [CANUFNET] green ash decline</div><p></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span style="color: blue;" lang="EN-US">We are seeing the same thing here in Red Deer. In late
September some Green Ash were still leafed out when the temperatures
plummeted. We observed many trees holding dead leaves over winter. To
compound the problem, we’ve received little precipitation in the fall and
little snow cover over the winter. This spring was hard on our trees
too. In April the temperatures were really mild until the end of the
month when the temperatures dipped going into the beginning of May. Many
Aspen poplar that were leafed out during this time period, suffered a bit of
frost damage. I would agree that it is abiotic.</span></p><div><div></div><div class="h5">
<div>
<p><b><span style="color: green;" lang="EN-US">June
is Recreation & Parks Month. How do you live it everyday</span></b><b><span style="font-size: 13.5pt; color: green;" lang="EN-US">? </span></b><b><span style="color: blue;" lang="EN-US"> </span></b><span style="color: blue;" lang="EN-US"><br>
</span><b><span style="font-size: 10pt; color: blue;" lang="EN-US">We want to hear from you throughout the month of June! </span></b><span style="color: blue;" lang="EN-US"><br>
</span><b><span style="font-size: 10pt; color: blue;" lang="EN-US">Email your recreation, parks and culture experiences to </span></b><span style="color: blue;" lang="EN-US"><a rel="nofollow" ymailto="mailto:rpc@reddeer.ca" target="_blank" href="mailto:rpc@reddeer.ca"><b><span style="font-size: 10pt;">rpc@reddeer.ca</span></b></a></span><b><span style="font-size: 10pt; color: blue;" lang="EN-US">.</span></b><span style="color: blue;" lang="EN-US"> <br>
</span><b><span style="font-size: 10pt; color: blue;" lang="EN-US">You'll automatically be entered to win a prize package valued at
more than $1,000.</span></b><span style="color: blue;" lang="EN-US"> <br>
</span><b><span style="font-family: Papyrus; color: blue;" lang="EN-US">Elaine
Johnson</span></b><span style="color: blue;" lang="EN-US"> <br>
</span><b><span style="font-family: Papyrus; color: blue;" lang="EN-US">Urban
Forester</span></b><span style="color: blue;" lang="EN-US"> <br>
</span><b><span style="font-family: Papyrus; color: blue;" lang="EN-US">Parks
Planning and Technical Services</span></b><span style="color: blue;" lang="EN-US"> <br>
</span><b><span style="font-family: Papyrus; color: blue;" lang="EN-US">City of Red Deer</span></b><span style="color: blue;" lang="EN-US"> <br>
</span><b><span style="font-family: Papyrus; color: blue;" lang="EN-US">(403)
342-8344</span></b><span style="color: blue;" lang="EN-US"> </span><span lang="EN-US"></span></p>
</div>
<div>
<div class="MsoNormal" style="text-align: center;" align="center"><span style="font-size: 12pt;" lang="EN-US">
<hr align="center" width="100%" size="2">
</span></div>
<p class="MsoNormal"><b><span style="font-size: 10pt;" lang="EN-US">From:</span></b><span style="font-size: 10pt;" lang="EN-US"> <a rel="nofollow" ymailto="mailto:canufnet-bounces@list.web.net" target="_blank" href="mailto:canufnet-bounces@list.web.net">canufnet-bounces@list.web.net</a>
[mailto:<a rel="nofollow" ymailto="mailto:canufnet-bounces@list.web.net" target="_blank" href="mailto:canufnet-bounces@list.web.net">canufnet-bounces@list.web.net</a>] <b>On Behalf Of </b>Boone, Jeff (IS -
Parks)<br>
<b>Sent:</b> June 28, 2010 12:53 PM<br>
<b>To:</b> '<a rel="nofollow" ymailto="mailto:canufnet@list.web.net" target="_blank" href="mailto:canufnet@list.web.net">canufnet@list.web.net</a>'<br>
<b>Subject:</b> [CANUFNET] green ash decline</span><span style="font-size: 12pt;" lang="EN-US"></span></p>
</div>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal">In Saskatoon, many of our green ash are struggling this
year. We are seeing many trees with portions of the mid and upper crown
dying and often the lower crown is struggling to leaf out. In some cases
the trees have not leafed out at all. The damage is widespread throughout
the city. The trees are of mixed age but many are well established.
I’m wondering if other prairie cities are seeing green ash fail to leaf
out with significant dieback in the crown. </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">We suspect the cause is abiotic. Not sure if this is
part of the story but we had very unusual Fall weather. We had an early
snow fall in October, exceptionally warm weather in November and then a very
sudden drop in December with no snow cover. We also had two weeks of warm
weather in January. </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Any suggestions are appreciated.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Thanks</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><b><span style="font-size: 9pt;">Jeff
W. Boone</span></b></p>
<p class="MsoNormal"><span style="font-size: 9pt;">Entomologist
B.Sc. M.Sc </span></p>
<p class="MsoNormal"><span style="font-size: 9pt;">(306)
975 3466</span></p>
<p class="MsoNormal"><span style="font-size: 9pt;">(306)
220 5368 (cell)</span></p>
<p class="MsoNormal"><span style="font-size: 9pt;">1101
Ave P N</span></p>
<p class="MsoNormal"><span style="font-size: 9pt;">Saskatoon
SK</span></p>
<p class="MsoNormal"><span style="font-size: 9pt;">S7K
0J5</span></p>
<p class="MsoNormal"> </p>
<div>
<div class="MsoNormal" style="text-align: center;" align="center"><span style="font-size: 12pt;">
<hr align="center" width="100%" size="2">
</span></div>
<p class="MsoNormal"><span style="font-size: 12pt;">[This
message has been scanned for security content threats and viruses.]<br>
<br>
[The City of Red Deer I.T. Services asks that you please consider the
environment before printing this e-mail.]</span></p>
</div>
<div>
<div class="MsoNormal" style="text-align: center;" align="center"><span style="font-size: 12pt;" lang="EN-US">
<hr align="center" width="100%" size="2">
</span></div>
<p class="MsoNormal"><span style="font-size: 12pt;" lang="EN-US">This
e-mail is intended for the original recipient(s) only. If you have received it
in error, please advise the sender and delete this message. </span></p>
</div>
</div></div></div>
</div>
</blockquote></div><br><br clear="all"><br>-- <br>Vince Rutter, RPF<br>ISA Certified Arborist<br><a rel="nofollow" target="_blank" href="http://www.rutterurbanforestry.ca">www.rutterurbanforestry.ca</a><br>807-627-6201<br>
</div>
</div></div>
</div><br></body></html>