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Preserving Veteran Trees

April 3, 2019 @ 8:30 am - 3:30 pm
Instructor: Dr. Kevin T. Smith, Torrey Young, Frink Rinn and Chris Rippey CEUs: 6.0 ALMTU / 1.5 B-S, 2.5 B-P, 2.0 B-M

In-Person Location: Mount Baker Rowing and Sailing Center, 3800 Lake Washington Blvd S, Seattle, WA 98118 

Online Location: This workshop is available for remote attendance online. Gather a group at work and watch together. Every person taking the online workshop will need to register to receive CEUs.


Dr. Kevin T. Smith, Torrey Young, Frink Rinn and Chris Rippey are long-active practitioners in arboriculture. Dr. Kevin Smith is a research scientist and has published over 150 research and educational articles. Torrey Young started his career in Arboriculture in the early seventies as a tree worker and has evolved into a leading Arboricultural Consultant in California. Frank Rinn has a Master’s Degree in Physics and is a technology innovator whose inventions have helped to move our industry into the age of data-driven tree care. Chris Rippey started his career chipping brush for his dad. He is an active tree worker and managed a preventative tree maintenance program for the Seattle Parks System.

These tree industry veterans will combine their diverse experiences to present a comprehensive perspective on preserving veteran trees. Each presenter will give a talk relating to their unique arena in the care of veteran trees. This seminar will cover;

  • How veteran trees function biologically,
  • How our views as an industry have changed over time regarding veteran tree care,
  • How our current industry standards apply to veteran tree care,
  • Case studies on how care of veteran trees is currently being performed in the field, and
  • How technologies can be utilized to preserve veteran trees.

This workshop will feature information on a large range of veteran tree species native to Northern California and Lowland Puget Sound. Tree care will be discussed in situations ranging from residential sites to remnant forest trees in your neighborhood park. A variety of tree risk mitigation options will be explored.

Workshop participants will walk away with a better understanding of the options for preserving veteran trees. They will get access to the experience of four people who have made trees their life’s work. Attendees will better understand why to prune a veteran tree, the physiology of older trees, why goal specific pruning is key, why less is more, and why we must be brave and innovative in order to make the often hard choices to preserve and manage veteran trees.

This workshop will conclude with a substantial panel discussion with our speakers.



Dr. Kevin T. Smith is Supervisory Plant Physiologist for the US Forest Service and Affiliate Professor of Biology at the University of New Hampshire, Durham. A plant pathologist and mycologist, Smith investigates the growth and defense processes of compartmentalization in living trees and the long-term relationships of trees and forests with decay fungi. Smith has published more than 125 research and educational articles and has received awards for research and science delivery from the US Forest Service and the International Society of Arboriculture. More details are available at:  https://www.nrs.fs.fed.us/people/ktsmith.

Torrey Young has worked in arboriculture since 1972. He ran a tree care and consulting firm TREESCAPES, Inc. for 27 years before merging with a national firm. He is now a full-time independent Consulting Arborist through his firm, Dryad, LLC. Torrey is an ASCA Registered Consulting Arborist (#282), an ISA Board Certified Master Arborist and Municipal Specialist (#WE-0131B) a CUFC Certified Urban Forester (#121) an ISA Qualified Tree Risk Assessor and a CA licensed contractor (C-27 Landscaping and C-61/D49 Tree Service). He has a long history of work and leadership within professional organizations, and is a recipient of many industry awards. He is a Past President of the American Society of Consulting Arborists (ASCA) and the California Arborist Association (CAA) and is currently serving on the International Society of Arboriculture (ISA) BCMA (Board Certified Master Arborist) Test Committee as Vice-chair and the Consulting Arborist Committee of the Western Chapter ISA.

Frank Rinn received his Master Degree in Physics from the Giessen and Heidelberg University in Germany. He has invented and developed different methods, machines, and computer programs for various purposes in tree-ring analysis, dendrochronology, as well as for tree and timber inspection. This includes the Arbotom and Resistograph. Frank also works as a court registered expert, inspecting trees and timber (structures). In addition, he published several dozen papers on various topics in national and international journals, some of them in highly rated peer-review publications, such as “Holzforschung” and “Radiocarbon”.

Chris Rippey is a third generation Arborist. He is an American Society of Consulting Arborists Registered Consulting Arborist (RCA #633). He is a Certified Arborist (WE-7672AUTM) and a current member of the PNWISA Board of Directors. Chris has been a tree climber for over twenty years. He works as a Tree Trimmer for the Seattle Parks System where he prunes large mature trees. Chris is also a co-founder of the PNW Tree Failure Database.

Refund Policy

  • Cancellations made at least 10 days prior to the event will be refunded at 100%.
  • Cancellations made within 5-9 days of the event will be refunded at 75%.
  • Cancellations made within 1-4 days of the event will be refunded at 50%.
  • Refunds will not be made available for no-shows.

Late Registration

  • Participants are expected to enroll prior to the registration deadline.
  • Participants can register at the door of the event only if space is available. Individuals will need to pack their own lunch.
  • Late registration is possible on a space available basis. You can contact our office at (800) 335-4391. There may, or may not be, room available for those who show up without registering ahead of time for the workshop. We encourage you to register for the workshop in advance.

Allied Professionals are members of allied organizations. See our list of qualifying organizations.


Online & Seattle, WA
Online & Seattle, WA,