[CANUFNET] green ash decline

[Friesen, Russell]

We have the same issue in Calgary
--------------------------
Sent from my BlackBerry Wireless Device

________________________________
From: canufnet-bounces at list.web.net <canufnet-bounces at list.web.net>
To: 'canufnet at list.web.net' <canufnet at list.web.net>
Sent: Mon Jun 28 12:53:06 2010
Subject: [CANUFNET] green ash decline

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.

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.

Any suggestions are appreciated.

Thanks

Jeff W. Boone
Entomologist B.Sc. M.Sc
(306) 975 3466
(306) 220 5368 (cell)
1101 Ave P N
Saskatoon SK
S7K 0J5


________________________________
NOTICE -
This communication is intended ONLY for the use of the person or entity named above and may contain information that is confidential or legally privileged. If you are not the intended recipient named above or a person responsible for delivering messages or communications to the intended recipient, YOU ARE HEREBY NOTIFIED that any use, distribution, or copying of this communication or any of the information contained in it is strictly prohibited. If you have received this communication in error, please notify us immediately by telephone and then destroy or delete this communication, or return it to us by mail if requested by us. The City of Calgary thanks you for your attention and co-operation.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.web.net/pipermail/canufnet/attachments/20100629/a4e3db20/attachment.htm>