[CANUFNET] Question to mailing list members

[Picard, Jérôme (PQM-FUH)]

I would also be very curious about this research ! Not that I can't see the relation between these two things, but a study that focuses directly on relation between epicormic growth and DED makes me think that the conclusions would probably be more complicated than this.

This said, here in Quebec city, we have a DED's program since 1981 and it's not something that we were especially looking for when a case is investigated. With some sort of base proof, and to upgrade knowledge on DED, we would gladly participate (with our ongoing activities) to any research of those kinds.

Best regards
________________________________________________
Jérôme Picard, ing.f
Conseiller en environnement
Division de la foresterie urbaine et de l'horticulture
Ville de Québec
Prévention et qualité du milieu
250-L, boulevard Wilfrid-Hamel
Québec (Québec) G1L 5A7
Téléphone : (418) 641-6411, poste 7716
Jerome.picard at ville.quebec.qc.ca<mailto:Jerome.picard at ville.quebec.qc.ca>
CONFIDENTIALITÉ : Ce courriel (de même que les pièces jointes) est confidentiel. Si vous n'êtes pas le destinataire visé, veuillez en aviser immédiatement l'expéditeur et supprimer ce message.

De : CANUFNET <canufnet-bounces at list.web.net> De la part de Philip van Wassenaer via CANUFNET
Envoyé : 5 mars 2021 17:46
À : 'Canadian Urban Forest Network' <canufnet at list.web.net>
Cc : Philip van Wassenaer <pwassenaer1022 at rogers.com>
Objet : Re: [CANUFNET] Question to mailing list members

I have been working on DED for a long time and with some specific Winnipeg experience. Never heard of this!

I would ask the university researcher that made the statement to please provide some scientific evidence to substantiate that. Trees don't usually grow things they don't need. Removing sprouts is an aesthetic  driven practice, not much good to the tree as far as I can see. And could be a stress that attracts the beetles as previously mentioned here.

If you receive some good information to verify this, please do pass it along. Interesting query...

Cheers and have a great weekend all,

Philip

Philip van Wassenaer, B.SC., MFC
Urban Forest Innovations Inc.
1331 Northaven Drive
Mississauga ON L5G 4E8
Tel:  (905) 274-1022
Cell: (647) 221-3046
Fax: (905) 274-2170
[UFI new logo very small]

www.urbanforestinnovations.com<https://can01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.urbanforestinnovations.com%2F&data=04%7C01%7Cjerome.picard%40ville.quebec.qc.ca%7C67fc39028c164c732e1108d8e028bae6%7C3ecdfcdc6f8a4096993b0c88df302d67%7C1%7C0%7C637505812825347779%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=sNoQYMb1VQud4ILA5iFc3LG7IEwMBIIo4RNXNuoJ5HA%3D&reserved=0>

From: CANUFNET <canufnet-bounces at list.web.net<mailto:canufnet-bounces at list.web.net>> On Behalf Of SOS Trees Coalition via CANUFNET
Sent: March 5, 2021 2:31 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: [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








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