Quarterly Newsletter                       February 2012

  Hi Neighbor!
In This Issue
Tree Planting
Inoculation Going Forward
Support SOE


Elms Update

 American elm leaf
Q1, 2012 Activity

As the elms begin budding in the coming months, we'll be on the lookout for early signs of DED.  Because the disease tends to spread in a focused area, we pay particular attention to indicators in previously unaffected trees and take early action against it.  We will provide an update on our findings in our next newsletter.



Quick Links


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It's Tree Planting Time - Please Join Us!


Where: Meet at Palio, Ladd Circle

When: Saturday, March 17, 9:00 am to ~12:00 pm


Every year our neighborhood experiences a natural loss of trees due to age and disease.  Replacing these trees is essential to maintaining our neighborhood's unique urban forest.


This year we'll be planting 30 saplings, including six disease-resistant elms.  Join your neighbors, have fun and make an impact.  No experience is necessary and kids are welcome.  Bring gloves, and if you can, a shovel, large bucket, hose, pruners, street broom and ax.   We'll get it done, rain or shine.


Sign up or ask questions by sending an email to Richard Jenkins at  Or just show up Saturday morning.  We look forward to seeing you then.


Our planting efforts are generously supported this year by Multnomah County, which digs the holes prior to planting day, and, as always, Friends of Trees, which donates the trees, and Palio.  Thank you very much!



Inoculation - A New Direction, Part II 


In the June 2011 newsletter, we provided a glimpse of the new elm protection strategy we will be employing going forward.  Here's more ...


SOE has been striving to maintain and expand the historic canopy in Ladd's Addition since 1995. During those years, we have followed a process by which we "injected" fungicide into the trees.  You may have seen the small micro-injector bottles inserted into the bases of the elm trees in past years. This approach provided an effective and affordable method of slowing the spread of Dutch Elm Disease (DED).


While SOE's efforts to date have clearly impacted the progression of DED, elm losses demonstrate that our past practices have lost effectiveness. Recent research from the Department of Agriculture and professional arborists indicates that micro-injection is less effective, over time, than we hoped.


Most professional arborists and municipal DED management programs have recently transitioned to using a "macro-infusion" process which injects a different fungicide into the trees' root flares using electric pumps. This fungicide and the pump equipment require State certification and specialized training. A professional arborist must mix the product and supervise its application.


Beginning with this spring's inoculation, we will target trees in the vicinity of recent elm losses with the new macro-infusion process. Due to the much higher materials and labor costs, our goal will be to treat a smaller number of trees on an annual basis - 15 to 20 - but with what we expect to be better results.


Volunteers will continue to be needed for this new process. Volunteers will help prepare the site the day before the inoculation by exposing the root flares on the trees to be treated. On the day of the inoculation, volunteers will help with needle placement, hose rigging, and supplemental monitoring of equipment.  Next quarter's newsletter will provide details regarding volunteering for the new injection process.  We hope you can help.



Please Donate - It's An Investment


Why an investment?  Because the street trees in our neighborhood increase the value of our homes by many thousands of dollars.  They also have climate, energy conservation, air quality, and safety (cars drive slower on tree-lined streets) value.  And as we all know, they make an evening walk a true pleasure.


Please make a donation today.  Individual contributions make up more than two thirds of SOE's annual budget and are the foundation of the program's success.  SOE is an all-volunteer, non-profit organization.  One hundred percent of your investment is used for our tree protection and planting efforts.  You can help make a tax-deductible contribution online (Donate link above) or by sending a check to: Save Our Elms, 1630 SE Elliott Ave., Portland, Oregon  97214.  As always, thank you for your past support.

 We'd Like To Hear From You

If you have topic ideas for future SOE newsletters, let us know.  Please send a message to We'll do our best to include proposed topics in upcoming issues.