[CANUFNET] [External email] Question to mailing list members

[Ethier Elaine]

Hello,

Urban river banks, navigation corridors,  wetlands, some natural reserves, parks, zoo, and arboretum could be areas where sprouts are managed to keep a pantry alive for beetles and account for the population. It’s pest and pathology control not eradication.

Alike these sprouts are a form of ecological shelter and structure for water birds, urban wildlife and plastic runoff’s.
etc.

For street tree, small spaces, community squares,  they could indicate future hasards. There a balance.

Elaine

Confidentialité:
Ce document est destiné uniquement à la personne ou à la société à laquelle il est envoyé. Le contenu de l’information est
confidentiel et ne peut pas être lu, ni partagé, ni communiqué.



Le 5 mars 2021 à 17:47, Stephen Smith via CANUFNET <canufnet at list.web.net> a écrit :


They must be thinking that since the beetles chew away at the top of the branches where they meet the stem that more branches means more chewing so more chances to introduce the fungus into the tree.

Stephen Smith
Urban Forest Associates
Urban Forestry & Ecological Restoration
www.ufora.ca
Office/fax 416-423-3387
Cell 416-707-2164

From: CANUFNET <canufnet-bounces at list.web.net> On Behalf Of Mike Jenkins via CANUFNET
Sent: March 5, 2021 3:40 PM
To: Canadian Urban Forest Network <canufnet at list.web.net>
Cc: Mike Jenkins <mike.jenkins at edmonton.ca>
Subject: Re: [CANUFNET] [External email] Question to mailing list members

In general, I would think that the wound generated by removing the epicormic growth would be a greater attractant and a greater risk of entry for the beetles than leaving the growth in place.

The epicormic growth itself could be an indicator of where vascular blockage is occurring - potentially due to gallery formation or fungal growth.  The growth then would be a response to an infestation or injury that already occurred, and not the causative agent of the gallery or fungus.  The weaker connections of epicormic growth would also be more vulnerable to being removed accidentally by wind or other factors, again potentially creating an entry point for the beetles.  For these reasons a tree with epicormic growth should be a target of increased monitoring and surveillance.

On Fri, 5 Mar 2021 at 13:14, Russell Eirich via CANUFNET <canufnet at list.web.net<mailto:canufnet at list.web.net>> wrote:
Epicormic growth probably means there is some factor causing decline in the overall tree health.  This would then correspond to a possible increased beetle predation with vector transmission of DED.

Just a thought - But I don’t have documented proof either.

Regards
Russell

From: CANUFNET <canufnet-bounces at list.web.net<mailto:canufnet-bounces at list.web.net>> On Behalf Of SOS Trees Coalition via CANUFNET
Sent: Friday, March 5, 2021 1:31 PM
To: canufnet at list.web.net<mailto:canufnet at list.web.net>
Cc: SOS Trees Coalition <trees at sostrees.ca<mailto:trees at sostrees.ca>>
Subject: [External email] [CANUFNET] Question to mailing list members

Here is a question that I would like to have posted to the subscribers:

Has anyone heard of the need to remove watersprouts from American Elm trunks because they could be a source of entry for the elm bark beetle?  We have been alerted to this by a university researcher who claims that leaving this growth on elms can leave them vulnerable to Dutch Elm disease. I have never heard of this and want to know if anyone has information to support it.


Linda Moskalyk
President
SOS Trees Coalition
Saskatoon








.



CAUTION: This email originated from outside the organization. Do not open links or attachments you were not expecting, even from known senders. Contact the TDI ServiceDesk at 306-777-7980 if the email is suspicious.
DISCLAIMER: The information transmitted is intended only for the addressee and may contain confidential, proprietary and/or privileged material. Any unauthorized review, distribution or other use of or the taking of any action in reliance upon this information is prohibited. If you received this in error, please contact the sender and delete or destroy this message and any copies.


--


[https://lh5.googleusercontent.com/AhWxxPie7JkSUy_NPIBf2BHeHvgKOtZCFcnG-l1rO14v1HRq11O9NM7YyZmyduCNeQ529-6L09QtnO_2VmwISnvOIJg16guXFgI_NEapPGtJRD0w6pG_XQSuGbjKqKZzTuJL2tf7]

Mike Jenkins

PEST COORDINATOR
ANIMAL CARE & PEST MANAGEMENT

CITIZEN SERVICES  |  COMMUNITY STANDARDS & NEIGHBOURHOODS


780-496-6395  OFFICE

780-918-7731  MOBILE



CITY OF EDMONTON

PEST MANAGEMENT

12312 - 107 ST

Edmonton AB T5G 2S7

Pronouns (He/Him)


All information contained in this email post is proprietary to the City of Edmonton, confidential and intended only for the addressed recipient. If you have received this post in error, please disregard the contents, inform the sender of the misdirection, and remove it from your system. The copying, dissemination or distribution of this email, if misdirected, is strictly prohibited.

The contents of this message and any attachment(s) are confidential, proprietary to the City of Edmonton, and are intended only for the addressed recipient. If you have received this in error, please disregard the contents, inform the sender of the misdirection, and remove it from your system. The copying, dissemination, or distribution of this message, if misdirected, is strictly prohibited.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.web.net/pipermail/canufnet/attachments/20210305/ca681985/attachment-0001.htm>