[CANUFNET] green ash decline

[J Sloggett]

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???

On Tue, Jun 29, 2010 at 3:08 PM, Jim Donnelly <jdonnelly at cityofgp.com>wrote:

>  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
>
>
>
> Jim Donnelly
>
> Integrated Pest Management Coordinator
>
> Parks Operations
>
> City of Grande Prairie
>
> Tel:  780-513-5226
>
> Fax: 780-532-7588
>
> Cell: 780-814-3763
>
> jdonnelly at cityofgp.com
>
>
>
> *From:* canufnet-bounces at list.web.net [mailto:
> canufnet-bounces at list.web.net] *On Behalf Of *Boone, Jeff (IS - Parks)
> *Sent:* June 28, 2010 12:53 PM
> *To:* 'canufnet at list.web.net'
> *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
>
>
>



-- 
Jack Sloggett
jack.sloggett at gmail.com
(905) 465-1859 (office)
(905) 866-4103 (cell)
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