Help Support Team PNW in Tour des Trees 2018

Tour des Trees to Benefit TREE Fund, Ohio 2018.Make a difference in the health of our community forests by supporting Team PNW as they ride in the 2018 Tour des Trees. Team PNW's efforts allow the TREE Fund to advance the fields of arboriculture and urban forestry.

We are now accepting donations to support Team PNW here. If you can't afford to donate, please spread the word by sharing the Team PNW page at

Thank you in advance for your generosity. We appreciate it!

TCI EXPO 2018 Charlotte, NC November 8–10

The Tree Care Industry Association invites you to join thousands of tree care professionals November 8-10, 2018, in Charlotte, North Carolina. This annual show combines the unparalleled value of a first class conference education with endless networking opportunities with top industry leaders in business, safety and arboriculture.

TCI EXPO is the ideal place to compare equipment, evaluate products, and take advantage of special show-only pricing from hundreds of exhibitors on TCIA's largest show floor, ever! Plus, check out live demonstrations, participate in the new Skills Arena, win prizes and giveaways, attend forums and roundtables, earn valuable CEUs and more. This is a trade show experience you need and simply won’t get anywhere else!

For more information and to register visit or call TCIA at 800.733.2622.

2019 ArborMaster Climbing Kit Prize Package

The logos of Arbormaster, Buckingham, Oregon, Samson, Silky, and Vermeer.The Pacific Northwest Chapter is pleased to announce the 2019 ArborMaster Climbing Kit Prize Package for the winners of the Chapter Annual Tree Climbing Championship, which will be held September 29-30, 2018 at Stanley Park in Vancouver, BC.

These climbing kits will be presented to the women’s and men’s champions to help equip them for competing as PNW-ISA’s representatives at the 2019 International Tree Climbing Championship.

Each prize package includes:

  • Buckingham Master 5.0 Arborist Tree Climbing Saddle
  • Silky Zubat Arborist Professional Hand Saw with Leg Straps
  • OREGON® Tool Bag
  • Vermeer Logo’d 52 oz. Stainless Steel Oversized Mug
  • 50% savings for an ArborMaster® 2-Day or 3-Day Hands-On Training Module
  • Samson ArborMaster® 150’ Hawkeye Climbing Line with eye splice

Arborjet Scholarship Program Now Accepting Applications

For the fifth consecutive year, Arborjet is pledging $1,000 scholarships to 10 high school seniors to help them pursue full-time studies in Forestry, Plant Sciences, Horticulture, Entomology, Environmental Science or a related major at an accredited two- or four-year college.

"We want parents, educators, counselors and the tree care community to join us in encouraging young students to transform their ingenuity and passion into a career in this important industry,” said Russ Davis, President and COO, Arborjet. “Through Arborjet's ‘Taking Root’ Scholarship Program, we recognize dedicated students who are already demonstrating achievement in their schools and communities and plan to lend their skills and talents to grow our industry."

Interested students and educators can find out more by visiting and applying directly at The application deadline is June 30, 2018.

For more information and to read about past winners, please visit

2018 Tree Climbing Competitions

Tree climber in arborist safety gear descends from a tree.
Jamie Schlittenhart at Southern Oregon Regional 2018

Warm months in the Pacific Northwest are the perfect time and place to get outside and climb trees. Here’s info about this year’s TCCs.

Previous TCCs

Southern Oregon Regional, May 12

Adam Airoldi from the City of Medford led organizers to a successful inaugural TCC in Hawthorne Park, Medford. Seasoned judges, technicians, and volunteers from all over the Pacific Northwest helped guide the new group’s efforts.
The event garnered multiple pieces of local media coverage (here, here, and here) as 26 climbers competed for top prizes and accolades. Congratulations to Dan Kraus who came out on top of the field of competitors.

Portland Regional, June 16–17

This year's event will be packed with prowess as 30 climbers compete to be named champion. Head to Irving Park in Portland to watch your colleagues at work. More info available here.

Upcoming TCCs

Read More "2018 Tree Climbing Competitions"

ISA Certification Exam Prep Classes Coming to BC This Fall

ISA Certified Arborist logoBurnaby Central School in Burnaby, BC, will hold another series of classes to prepare individuals for the ISA Certified Arborist Exam. The course is designed to prepare park professionals, tree pruners, landscape architects, and gardeners for the exam. Topics include tree identification, plant physiology, pruning, installation, and establishment.

The class will begin on October 9, 2018 and run for ten sessions on Tuesdays from 7 to 9:30 PM and Saturdays from 9 AM to 12 PM. This will prepare students to take the ISA Arborist Certification Exam typically offered around early December in North Vancouver.

Class Requirements

  • Students will need a copy of the ISA Arborists' Certification Study Guide, Third Edition by S.J. Lilly. It is available online at and through Pacific Arborist Supplies (604.929.6133).
  • Three years’ industry experience is required to write the exam.

For more information on the ISA Certifications, visit

Annual Training Conference 2018 is IUFC 2018

On September 30 - October 3, join us for an exciting opportunity. PNW-ISA’s Annual Training Conference will take place in Vancouver, BC in combination with Tree Canada and Urban Tree Diversity’s conferences to create this unique event. The theme, “The Urban Forest - Diverse in Nature” is a natural fit for this diverse array of attendees with a common interest in our urban forests.

The Congress will be a forum for practicing arborists and urban foresters, green space planners and designers, policymakers, researchers, educators, and nonprofits to share their unique insights into arboriculture and urban forestry. Our collective knowledge and experience can help us all shape better urban forests all around the world. Read More "Annual Training Conference 2018 is IUFC 2018"

Member Survey 2017 Results Report

A representation of words used by survey takers in the shape of a tree. The most common words were work, chapter, isa, like, opportunities, great, offered, tree, see, arborist, classes, thank, and also.The 2017 Member's Survey was distributed by email to all members last September. 15% of the membership filled out at least some of the questions on the survey. The majority of those surveyed are happy with PNW-ISA's service over the past year. Overall, these members are most concerned about classes and workshops.

All graphs are available as a larger size - click on the image to view.
Read More "Member Survey 2017 Results Report"

Welcome to Editor Dylan Saito

Dylan Saito: a man with a dark mustache dressed in tree climbing gear.Dylan Saito is an experienced arborist with a passion for sharing knowledge. He’s been involved with PNW-ISA for more than a decade as a head judge for regional climbing competitions. We are pleased to welcome him to his new role as Editor.

Dylan is overflowing with ideas for our digital future. “I want to provide members with the best possible information,” he said in an email. We have valuable resources in the form of Jim Barborinas’ Tree Profiles and Zeb Haney’s Tree Climbing 101 articles, but we can do more. Dylan and the PNW-ISA staff will work together in the coming months to find new topics and contributors.

Dylan’s vision calls for a strong focus on working arborists throughout our region. This focus "may increase the knowledge base, member base, and allow for Arborists to write their own story from different parts of the region we don’t normally hear from." He hopes these arborists will share their trade techniques, experiences, and photographs of best practices.

Dylan is passionate about advocating for mentoring and internship. “I want to really push the boundaries, and encourage internships for interested students and women in Arboriculture, Forestry, and the field.  We lose so many Arborists to injury, death, and retirement. I want to capture their experience before it fades away.”

“If we carefully practice the art of education and outreach, it will open the eyes of people who love trees, the benefits they provide to the planet, and the way we can all create this together.”

If you would like to help bring Dylan’s ideas to life, please email us at

Applied Tree Biology by A.D. Hirons and P.A Thomas

There are quite a few books on plant biology and a lot of books about trees. Applied Tree Biology sets out to merge the two themes into a text that is specifically aimed at arborists and tree managers. There are ten chapters:

  1. Introduction
  2. The Woody Skeleton
  3. Leaves and Crown
  4. Tree Roots
  5. The Next Generation of Trees: From Seeds to Planting
  6. Tree Water Relationships
  7. Tree Carbon Relationships
  8. Tree Nutrition
  9. Interactions With Other Organisms
  10. Environmental Challenges for Trees

Read More "Applied Tree Biology by A.D. Hirons and P.A Thomas"