Deskripsyon
This large Elm is showing signs of possible Dutch Elm Disease infection in some of its branches. If this is the case, immediate pruning (within the next week) may be effective in saving the tree.
Possible case of Dutch Elm Disease on Church Street ▶ Inilagay sa Artsibo
148-182 Church Street New Haven, Connecticut
Move the marker to represent your issue's location. The address will not change.
ID ng Isyu:
3503686Submitted To:
New Haven Parks DepartmentKategorya:
Elm TreeTiningnan:
3124 besesLugar:
DowntownInireport:
noong- Ibahagi
-
11 Komentos
David Harlan (Rehistradong User)
Pruning, which can literally eradicate the fungus from the tree by removing it, has a high probability of "saving" a newly infected tree that has less than 5% of its crown affected. Effective removal to preserve tree needs to be within 2-3 weeks of first occurrence. I think the disease on 3 trees you reported exceeds this.
Large trees within 25 to 50 feet of each other are likely to have root grafts. Breaking root grafts between infected trees and adjacent healthy trees is an important means to prevent movement of the fungus into the healthy trees. Root grafts should also be disrupted between the healthy tree adjacent to a diseased tree and the next healthy tree. It may even be desirable to sever grafts between very valuable trees before DED is observed in the vicinity, as a proactive measure.
see: https://www.na.fs.fed.us/spfo/pubs/howtos/ht_ded/ht_ded.htm#managing
ahelfand (Rehistradong User)
David Harlan (Rehistradong User)
Please be persistent in your reports to the Parks Dept. There is a Landscape Architect there you could reach out to directly, and an arborist with the Care of Trees [contracted for tree work on the Green] that might answer your questions directly. Please report back what you find out.
While this site is easy, you have not yet had a response from any agency. I will also try. The more of us that do this the better the prospect of getting status information. Thank you a!
ahelfand (Rehistradong User)
This is enoulf (Rehistradong User)
This is enoulf (Rehistradong User)
Kinilala URBAN FORESTER City of New Haven (Beripikadong Opisiyal)
ahelfand (Rehistradong User)
Dear Urban Forester,
Thanks for acknowledging my report. I hope that in cases of possible Dutch Elm Disease it will not take "months or years" for the city to take action, as that would almost certainly result in the loss of many more Elms. Even if there is a backlog of work, pruning and/or removal of infected Elm trees has to happen immediately in order to be effective in preventing the spread of the disease. Here is a link with information that may be helpful:
https://www.na.fs.fed.us/spfo/pubs/howtos/ht_ded/ht_ded.htm
Thanks again for your attention to this.
Aaron
ahelfand (Rehistradong User)
ahelfand (Rehistradong User)
Isinara Rebecca Bombero, Deputy Chief Administrative Officer (Beripikadong Opisiyal)