We had significant leaf drop from white ash and some Manitoba maples this spring in Port Credit (South Mississauga, Ontario). I've been watching them for signs of the Emerald Ash Borer, but that doesn't seem to be the cause. Perhaps it is related to the very dry spring here???<br>
<br><div class="gmail_quote">On Tue, Jun 29, 2010 at 3:08 PM, Jim Donnelly <span dir="ltr"><<a href="mailto:jdonnelly@cityofgp.com">jdonnelly@cityofgp.com</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;">
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<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Hi Jeff it sounds like we had a
similar fall to yours. Indian Summer followed by a sharp freeze and trees held
their leaves all winter. We however are not seeing any significant dieback in
ash (that isn’t related to the western ash bark beetle anyway). Good luck</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
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<p class="MsoNormal"><span style="font-size: 9pt; color: rgb(31, 73, 125);" lang="EN-CA">Jim
Donnelly</span></p>
<p class="MsoNormal"><span style="font-size: 9pt; color: rgb(31, 73, 125);" lang="EN-CA">Integrated
Pest Management Coordinator</span></p>
<p class="MsoNormal"><span style="font-size: 9pt; color: rgb(31, 73, 125);" lang="EN-CA">Parks
</span><span style="font-size: 9pt; color: rgb(31, 73, 125);" lang="EN-CA">Operations</span><span style="font-size: 9pt; color: rgb(31, 73, 125);" lang="EN-CA"></span></p>
<p class="MsoNormal"><span style="font-size: 9pt; color: rgb(31, 73, 125);" lang="EN-CA">City
of Grande Prairie</span></p>
<p class="MsoNormal"><span style="font-size: 9pt; color: rgb(31, 73, 125);" lang="EN-CA">Tel:
780-513-5226</span></p>
<p class="MsoNormal"><span style="font-size: 9pt; color: rgb(31, 73, 125);" lang="EN-CA">Fax:
780-532-7588</span></p>
<p class="MsoNormal"><span style="font-size: 9pt; color: rgb(31, 73, 125);" lang="EN-CA">Cell:
780-814-3763 </span></p>
<p class="MsoNormal"><span style="font-size: 9pt; color: rgb(31, 73, 125);" lang="EN-CA"><a href="mailto:jdonnelly@cityofgp.com" target="_blank"><span style="color: blue;">jdonnelly@cityofgp.com</span></a>
</span></p>
</div>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
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<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;">
<a href="mailto:canufnet-bounces@list.web.net" target="_blank">canufnet-bounces@list.web.net</a> [mailto:<a href="mailto:canufnet-bounces@list.web.net" target="_blank">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 href="mailto:canufnet@list.web.net" target="_blank">canufnet@list.web.net</a>'<br>
<b>Subject:</b> [CANUFNET] green ash decline</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span lang="EN-CA">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. </span></p>
<p class="MsoNormal"><span lang="EN-CA"> </span></p>
<p class="MsoNormal"><span lang="EN-CA">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. </span></p>
<p class="MsoNormal"><span lang="EN-CA"> </span></p>
<p class="MsoNormal"><span lang="EN-CA">Any suggestions are appreciated.</span></p>
<p class="MsoNormal"><span lang="EN-CA"> </span></p>
<p class="MsoNormal"><span lang="EN-CA">Thanks</span></p>
<p class="MsoNormal"><span lang="EN-CA"> </span></p>
<p class="MsoNormal"><b><span style="font-size: 9pt;" lang="EN-CA">Jeff
W. Boone</span></b></p>
<p class="MsoNormal"><span style="font-size: 9pt;" lang="EN-CA">Entomologist
B.Sc. M.Sc </span></p>
<p class="MsoNormal"><span style="font-size: 9pt;" lang="EN-CA">(306)
975 3466</span></p>
<p class="MsoNormal"><span style="font-size: 9pt;" lang="EN-CA">(306)
220 5368 (cell)</span></p>
<p class="MsoNormal"><span style="font-size: 9pt;" lang="EN-CA">1101
Ave P N</span></p>
<p class="MsoNormal"><span style="font-size: 9pt;" lang="EN-CA">Saskatoon
SK</span></p>
<p class="MsoNormal"><span style="font-size: 9pt;" lang="EN-CA">S7K
0J5</span></p>
<p class="MsoNormal"><span lang="EN-CA"> </span></p>
</div>
</div>
</blockquote></div><br><br clear="all"><br>-- <br>Jack Sloggett<br><a href="mailto:jack.sloggett@gmail.com">jack.sloggett@gmail.com</a><br>(905) 465-1859 (office)<br>(905) 866-4103 (cell)<br>
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