[CANUFNET] green ash decline

[Vince Rutter]

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.

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.

Vince Rutter, RPF
Rutter Urban Forestry
Thunder Bay, Ontario

On Tue, Jun 29, 2010 at 9:06 PM, For Trees <trees at fortrees.ca> wrote:

>  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.
>
>
>
> 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.
>
>
>
> Almost makes you wish for more poplar, spruce and more native trees and
> shrubs to be planted here on the prairies and foothills, eh?
>
>
>
> Regards,
>
>
>
> [image: ForTreeslogocolour][image: TC_logo_English]
>
> Gerard Fournier
>
> Board Certified Master Arborist #PR-0130BT
>
> Tree Canada Community Advisor-Southern Alberta
>
>
>
> President
>
> For Trees Company Ltd.
>
> 1-877-390-TREE (Alberta toll-free)
>
> http://www.fortrees.ca
>
>
>
>
>
>
>
> *From:* canufnet-bounces at list.web.net [mailto:
> canufnet-bounces at list.web.net] *On Behalf Of *Elaine Johnson
> *Sent:* June-29-10 1:49 PM
>
> *To:* 'Canadian Urban Forest Network'
> *Subject:* Re: [CANUFNET] green ash decline
>
>
>
> 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.
>
> *June is Recreation & Parks Month.  How do you live it everyday**? ** *
> *We want to hear from you throughout the month of June!  *
> *Email your recreation, parks and culture experiences to **rpc at reddeer.ca*<rpc at reddeer.ca>
> *.*
> *You'll automatically be entered to win a prize package valued at more
> than $1,000.*
> *Elaine Johnson*
> *Urban Forester*
> *Parks Planning and Technical Services*
> *City of Red Deer*
> *(403) 342-8344*
>   ------------------------------
>
> *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
>
>
>  ------------------------------
>
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-- 
Vince Rutter, RPF
ISA Certified Arborist
www.rutterurbanforestry.ca
807-627-6201
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