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<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. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></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. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Any suggestions are appreciated.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>Jeff
W. Boone<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>Entomologist
B.Sc. M.Sc <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>(306)
975 3466<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>(306)
220 5368 (cell)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>1101
Ave P N<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>Saskatoon
SK<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif"'>S7K
0J5<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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