[CANUFNET] Cottony Ash Psyllid

[JackRadecki via CANUFNET]

To all,

 

Years ago I planted several Manchurian Ash in Mount Pleasant Cemetery in Toronto. To date they seem to be reisistant to EAB. There was some work done on this at the Great Lakes Forest Research Centre by Dr. Barry Lyons.

As well Blue Ash (Fraxinus quadrangulata) shows some resistance, not sure of this one.

This is all in my experience and I have used Triazine for many years until my retirement.

 

Best Jack Radecki

www.arboricultureconsulting.net

 

 

From: CANUFNET [mailto:canufnet-bounces at list.web.net] On Behalf Of Gerard Fournier via CANUFNET
Sent: September 25, 2017 12:22 PM
To: 'Naomi Zurcher'; 'Canadian Urban Forest Network'; 'Sarah Regent'
Subject: Re: [CANUFNET] Cottony Ash Psyllid

 

Hi Sarah,

There has not been any luck at all treating this pest in Alberta. Most Manchurian and Black Ash have disappeared from the landscapes and urban forests of Calgary, Edmonton, Red Deer and other towns, so I would not hold out too much hope in Saskatchewan. In fact, I would suggest putting your money into removal and replacement with immune species such as Bur Oak would be a better use of funds. Alternatively, you may want to get in touch with Bio-Forest and see if their product, Tree Azin could be used for this pest experimentally.  We tried Orthene and Confidor in Alberta with very dismal success. Actually, zero success.

Sorry to hear about this!

Best,

Gerard

 

Gerard email sign-tag copy   

 

 

 

From: CANUFNET [mailto:canufnet-bounces at list.web.net] On Behalf Of Naomi Zurcher via CANUFNET
Sent: Friday, September 22, 2017 5:55 PM
To: Sarah Regent <SRegent at moosejaw.ca>; Canadian Urban Forest Network <canufnet at list.web.net>
Subject: Re: [CANUFNET] Cottony Ash Psyllid

 

Hi Sarah:

 

Although much is not being done because of the focus on EAB, here are 2 fact sheets that contain some information regarding control / treatment. Also phone numbers to contact regarding your Psyllid problem. Hope this helps in a small way. Bets of luck saving your Ash trees.

 

naomi

-----Original Message----- 
From: Sarah Regent via CANUFNET 
Sent: Sep 21, 2017 6:46 PM 
To: "canufnet at list.web.net" 
Subject: [CANUFNET] Cottony Ash Psyllid 



Hello Everyone

 

I have discovered a cottony ash psyllid problem on the Manchurian ash in downtown Moose Jaw. All of the trees are about 20-30 cm diameter at breast height and in tree wells. The leaves aren’t showing much distortion, maybe 5% of leaves are distorted on the worst tree. From what I can tell it’s mostly second generation psyllids creating a lot of cotton, so I have hope we can get the psyllid population under control before they do serious damage.

What are other municipalities doing to control cottony ash psyllid? What are your thoughts on the efficacy of the treatments you’ve tried?

 

Thank you in advance.

Sarah Wist Regent, AAg
Parks Gardener
T: 306.694.4439 E: SRegent at moosejaw.ca
City of Moose Jaw | 228 Main St. N | Moose Jaw SK | S6H 3J8 | www.moosejaw.ca <http://www.moosejaw.ca/> 



 

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