[CANUFNET] CANUFNET Digest, Vol 66, Issue 16

Wed Jun 30 11:35:43 EDT 2010

hey Jeff we are seeing the same thing in Regina, we also had significant leaf drop on many ash trees in May and June to Ash Leaf spot Anthracnose.  We expect those trees to leaf out later with some TLC.

Glenn Chernick
Forestry Technician
City of Regina
Phone (306)777 7343
Cell (306) 535 4623

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Today's Topics:

   1. Re: green ash decline (Elaine Johnson)
   2. Re: green ash decline (J Sloggett)

----------------------------------------------------------------------

Message: 1
Date: Tue, 29 Jun 2010 13:49:24 -0600
From: Elaine Johnson <Elaine.Johnson at reddeer.ca>
Subject: Re: [CANUFNET] green ash decline
To: 'Canadian Urban Forest Network' <canufnet at list.web.net>
Message-ID:
<94816848A8EB3941B1E8592F425827A967F4B7ADD2 at chex2.crdnet.ca>
Content-Type: text/plain; charset="us-ascii"

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<mailto: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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Message: 2
Date: Tue, 29 Jun 2010 15:22:36 -0400
From: J Sloggett <jack.sloggett at gmail.com>
Subject: Re: [CANUFNET] green ash decline
To: Canadian Urban Forest Network <canufnet at list.web.net>
Message-ID:
<AANLkTinLf40Q1iMryL3FRHm0Z24WYF_eZM_2jazZEJG8 at mail.gmail.com>
Content-Type: text/plain; charset="windows-1252"

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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End of CANUFNET Digest, Vol 66, Issue 16
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