Sponsor and Exhibitor Registration for ATC 2017 Now Available

For 38 years, PNW-ISA has served the professional tree care industry with educational programs, special events, and networking opportunities. The 2017 Annual Training Conference promises to be another world-class training opportunity.

Take advantage of this opportunity to get your company name in front of over 400 ISA Certified Arborists and other members of the green industry.

Register Today: Exhibition spots are limited.

Chapter Award Nominations

The annual PNW-ISA awards will be presented during the Lynnwood ATC. Nominations are open for:

  • Arborist of the Year
  • Tree Worker of the Year
  • Volunteer of the Year

Use the new mobile-friendly online form or access the PDF version to nominate someone you know that has contributed to the community this year.

PNW-ISA ATC 2017 Keynote Speaker Announced

PNW-ISA Annual Training Conference
Lynnwood, WA
September 24–27, 2017

Trees are a vital link in achieving a variety of environmental and social changes that are urgently needed. We are witness to an ever faster pace of change in social and environmental conditions that affect trees in return. This year's conference promises a program filled with outstanding speakers and vital topics for addressing the challenges facing trees and the people who care for them.

Aligning with this year’s theme of People and Trees: Adapting to Change, our chapter is pleased to announce that we’ve confirmed Dr Jim Clark to deliver the Keynote address as well as a special session by local environmental reporter Lynda Mapes.

Keynote: Managing Mature Trees in a Changing Environment

Dr. James Clark, Vice President, HortScience, Inc.

Dr. Clark is an inspirational educator and mentor to many green industry professional in Pacific Northwest Chapter going back to the 1980's when he was on the faculty at the University of Washington Center for Urban Horticulture and a board member of the Pacific Northwest Chapter. He is co-author of A Photographic Guide to the Evaluation of Hazard Trees in Urban Areas, Trees and Development, Arboriculture - Integrated Management of Landscape Trees, Shrubs and Vines (4th ed.), and Structural Pruning - A Guide for the Green Industry, in addition to numerous articles in the Arborist News and several research journals. A recipient of the ISA Alex Shigo Award for Arboricultural Education, he lectures in arboriculture and urban forestry worldwide and is recognized internationally by the ISA.

Witness Tree: Seasons of Change with a Century-Old Oak

Lynda V. Mapes, Seattle Times Environmental Reporter

Lynda Mapes is a longtime reporter for the Seattle Times, covering the environment and natural history, including the removal of the Elway River Dams. She is author of four books, Elwha- A River Reborn, Breaking Ground: The Lower Elwha Klallam Tribe and Unearthing of Tse-Whit-Zen Village, Washington: The Spirit of the Land, and most recently, Witness Tree: Seasons of Change with a Century-Old Oak. In her new book Witness Tree, Lynda tells the story of climate change through the life of a single 100-year-old red oak tree in the Harvard Forest. She will share the story of what she learned during the year she spent at there as a Bullard Fellow in forest research in residence, exploring the human and natural history of a single tree.

More Speakers to Be Announced

These and many more great speakers will be providing attendees with thought provoking ideas at the conference this year! A full speaker program will be announced later this summer.

What's Next

The PNW-ISA Tree Climbing Championship will take place right before the conference. Will you compete this year? Join the Regional competition in Portland and find out!

Annual Training Conference 2017 Logo

This Year's Theme: People & Trees Adapting to Change

Trees are increasingly recognized as a vital link in bridging environmental, social, and policy issues. Professionals from a broad range of disciplines are paying more attention to the role of trees in their collective efforts for environmental conservation. The working arborist’s role is to keep current with the science and practice of tree care and effectively convey that information to a broad audience in a rapidly changing world.

Effective collaboration between professions and disciplines results in more successful solutions than any one group can achieve on their own. Linking our expertise and efforts may be our most vital tool for adapting to change.

ATC 2017 Logo

In developing our logo this year, we wanted to honor the locale. Conference attendees will be converging in Snohomish County; an ecological and societal delta where the mountains, estuaries, and sound come together with big cities and big trees. Through our artistic rendering of the location we hope to inspire attendees to see more solutions than obstacles when adapting to change.

The logo was provided and developed by local artist/photographer Sabina Burd.


PNW-ISA ATC 2017 Request for Presentation Proposals

PNW-ISA ATC 2017 "People and Trees: Adapting to Change"
September 24-27, Lynnwood, Washington

Proposals are due by Monday, February 20, 2017.

Trees are increasingly recognized as a vital link in bridging environmental, social, and policy issues. Professionals from a broad range of disciplines are paying more attention to the role of trees in their collective efforts for environmental conservation. The working arborist’s role is to keep current with the science and practice of tree care, and to effectively convey that information to a broad audience in a rapidly changing world. Effective collaboration between professions and disciplines results in more successful solutions than any one group can achieve on their own. Linking our expertise and efforts may be our most vital tool for adapting to change. We look forward to featuring a multitude of informative and provocative presentations, inspiring plenary speakers, and unlimited networking opportunities complementing the conference theme “People and Trees: Adapting to Change”.

Key Presentation Questions and Topic Areas

Some of the key questions and topic areas surrounding this year's theme include:

  • New approaches in arboriculture practices that address changing growing conditions for trees in the built environment.
  • How can professional and interdisciplinary collaboration improve outcomes for trees and people?
  • The influence of changing climate patterns on tree care needs and standard practices.
  • Social and environmental benefits of trees - putting new data to work.
  • How are you adapting your work as an arborist to changing client expectations?
  • Which arboriculture practices are becoming more vital to maintaining and preserving trees?

Read More "PNW-ISA ATC 2017 Request for Presentation Proposals"

ATC 2017 and 2018 Announcements

2017 Conference Theme To Be Determined!

The conference planning committee for the 38th Annual Training Conference is off and running. The group has met several times already to iron out volunteer roles and brainstorm about the conference theme and potential speakers.

The conference will be held at the Lynnwood Convention Center in Lynnwood, WA. Attendees can expect a Tree Academy (or Academies), Field Day, and indoor sessions for every discipline.

Mark your calendars for September 24-27, 2017. We expect to hold the Chapter Tree Climbing Championship during the conference as well.

And Looking Ahead to 2018 ...

The PNW-ISA is excited to announce that the 2018 Annual Training Conference will be held in Vancouver, BC in conjunction with the Canadian Urban Forest Conference (CUFC) and Urban Tree Diversity 3 (UTD3).

CUFC brings together leading experts from across the country, allowing for dialogue between professionals, community groups, and practitioners on innovative strategies, policies, technologies, research, and best management practices related to arboriculture and urban forestry.

UTD3 is an international conference that addresses research on urban tree diversity and its crucial implications for urban foresters and society in achieving resilient, vibrant, and productive urban forests.

The PNW-ISA will be working with CUFC and UTD3 to offer a unique conference, bringing together international, national, and regional speakers related to arboriculture and urban forestry.

Any questions related to ATC 2018 can be sent to Nadia Chan.

Annual Report to PNW Members

If you are going to be at the Annual Training Conference in Boise, you are strongly encouraged to attend the Annual General Meeting on Monday, September 19th.

Members in attendance will receive an in-person update on the Chapter’s accomplishments over the past year, how we’re measuring up against our strategic objectives, our financial health, and issues that we are looking to address over the next few years. A written Annual Report for the Chapter will also be circulated (and emailed to the full membership).

The AGM offers an opportunity for you to ask questions of the Board and staff directly, and of course, to vote in the election of Officers. We look forward to seeing you there!

2016 ATC “Connect, Cultivate, Grow!” Program Overview


The PNW-ISA conference committee is working hard to create the best experience possible at the 2016 ATC in Boise, ID. Each day of the conference is filled with events that are both engaging and educational.

Program Overview

Thursday, September 15 – PNW-ISA Chapter Tree Climbing Championship

Come watch true tree care professionals at their best or register as a competitor to show your colleagues what you can do. Be sure to catch the Master’s Challenge on Friday morning as well.

Friday, September 16 – Pre-Conference Tree Academies

This year, we are offering three concurrent Tree Academies on the Friday before the conference. All three will be held in Boise Centre and the east end of Julia Davis Park, located just a few blocks from downtown Boise. Your choices include:

  1. Documenting Evidence: Practical Guidance for Arborists – Presented by Dr. Julian Dunster
  2. Tree Appraisal Workshop: Field Training with the CTLA Trunk Formula – Presented by James Komen
  3. Basic Tree Biology: An Introductory Course – Presented by Jim Flott

Learn more about the Tree Academies.

Register for a Tree Academy (with or without a conference ticket).

The Tree Academies will be followed by a PNW Education Open House in the evening.

Saturday, September 17 – Field Day

Enjoy the fresh air in Julia Davis Park as you learn from our expert speakers. We have an array of topics covering everything from new technology in the arboriculture field to Arbormasters’ tree felling and chainsaw handling techniques.

More schedule details are available here: PDF  Mobile-friendly

Saturday will also include many special events, such as bike tours, a brewery tour, and an evening reception and silent auction. More information about our special events will become available as the conference approaches.

Sunday, September 18 – Indoor Presentations

This portion of the conference will be held at the Boise Centre, located in downtown Boise. The morning will begin with a warm welcome from the PNW-ISA Board President Phil Graham, followed by a keynote speech delivered by Paul Ries.

The rest of the day’s programming is split into specialized tracks for each area of arboriculture: Climbing, Commercial, Municipal, and Utility. More details about each track are available here: PDF  Mobile-friendly

Michelle Mitchell will host A History of Women in Arboriculture Lunch. In the evening, there will be a reception and awards presentation.

Monday, September 19 – General Session & Closing Remarks

The day will begin with a complimentary continental breakfast, followed by the Chapter’s Annual General Meeting. This will be followed by two Plenary sessions; the first, a series of presentations about the revival of Boise, and the second a hard-headed look at the everyday problems every arborist faces. Closing remarks will be delivered by Phil Graham, the 2016 Conference Chair, and the 2017 Conference Chair.

More schedule details are available here: PDF  Mobile-friendly

Presentation descriptions will become available closer to the conference.

Join us in Boise, Idaho for PNW-ISA’s 37th ATC!

Boise will be hosting the 37th Pacific Northwest ISA Annual Training Conference (ATC). It is our honor and pleasure to welcome the ATC back to the Treasure Valley. Boise last hosted this event in 2008, and this year’s conference is quickly shaping up to be another great success. Boise has grown since the last ATC, and the conference committee is excited to invite ISA professionals from all over the Pacific Northwest to Boise, “The City of Trees.”

The city of Boise is located in southwestern Idaho’s Treasure Valley at the western edge of the Great Basin and the Intermountain West. As Idaho’s capital city, Boise is home to a community that integrates agriculture, business, and industry into a thriving local economy. Boise has lots to offer its citizens and visitors alike with nearby recreation and entertainment, such as foothill trails, the Boise River greenbelt, a vibrant downtown, and a growing microbrew scene, which are just a few of the local attractions. Boise is an ideal setting for those who want to live, work, and play in their surrounding community.

This year’s ATC theme is “Connect, Cultivate, Grow!” This theme highlights the numerous ways in which the people of our industry utilize their specialized skills and knowledge within our communities – literally… “Connecting” with the community, “Cultivating” information, and “Growing” relationships. “Connect, Cultivate, Grow!” is woven through the conference threads via our speakers, topics, sponsors, and exhibitors; and as always, attending the ATC is an excellent tool for connecting with peers, cultivating continuing education, and growing relationships. Read More "Join us in Boise, Idaho for PNW-ISA’s 37th ATC!"

ATC 2016: “Connect, Cultivate, Grow!” Speakers Announcement

The Conference Committee is excited to share some great news! Speakers are in place for the 2016 Pacific Northwest ISA  Annual Training Conference (ATC). This year’s ATC boasts a list of locally and nationally recognized experts in the arboriculture field, who will speak as part of the Tree Care Academies, Field Day, and Indoor portions of the conference. Here are a few of the speakers and presentations you can look forward to this year: Read More "ATC 2016: “Connect, Cultivate, Grow!” Speakers Announcement"