Loading Events

« Back to Class Schedule

Register Now

Tree Disorder Diagnosis

July 31 @ 8:30 am - 11:45 am
Instructor: Jim Flott CEUs: 3.0 AM / 3.0 B-P Registration Fees: $50.00 - $100.00

PNW-ISA is hosting two Boise workshops on July 31. Enroll in BOTH to get $25 off. Use PROMO CODE: BOISE2020

Diagnosing plant health problems takes specialized knowledge and experience. In this workshop instructor Jim Flott will recommend diagnostic steps to follow in determining the problem. Case studies will be presented to demonstrate diagnosis process. This workshop provides a solid foundation for arborists of all skill and experience levels to aid in the diagnosis of tree disorders.

The term “Tree Doctor” implies that such a professional can effectively diagnose a plant health problem and offer advice or prescriptions for resolving it. Although not known as tree doctors these days, arborists are often called upon by their clients for exactly this service, since diagnosing plant health problems takes specialized knowledge and experience. Some diagnoses are straight-forward when dealing with common problems; however, other plant health issues can be frustrating to diagnose in cases when symptoms are elusive or when circumstances conspire to obscure the signs that something might be wrong.

The best plant health diagnosticians out there will tell you that it takes decades of study and diligent practice to get really good at it, and even then the most experienced will still consult textbooks and research articles to help verify their conclusions. This lecture presents diagnostic steps to follow in determining the problem.


Location: Idaho State Museum, Idaho Room, 610 Julia Davis Drive, Boise, ID 83702

  • 8:30am – 9:30am, Systematic Approach to Tree Order Diagnosis
    • Key factors in tree health management: Identification, Observation, Knowledge, Reading, Field Experience, Recent history, Simple tools, Analytical approach
    • Challenges in tree problem diagnosis: Plant, Pest, Environment; Simple and Complex diagnostics
    • Gathering the facts/data: In depth investigation about the plant, pest, and environment
  • 9:30am – 9:45am, Break
  • 9:45am-11:45pm
    • The diagnostic process and the questions to ask: 20 questions to ask systematically in the diagnostic process
    • The basic inquiries and steps to follow: Explanation of the diagnostic process with practical examples.


Jim Flott is president of Community Forestry Consultants, Inc. (CFC). CFC provides TreeWorks™ tree management software; inventories and appraisals; management plans; risk assessment and risk management plans; tree preservation plans; diagnosis; expert witness; forensic investigations; urban forestry program reviews; training workshops; and urban forestry, arboriculture, and horticulture consulting services to individuals, corporations, universities, municipalities, county and state agencies, cemeteries, and golf courses in the United States and Canada. He received his B.S. degree in horticulture from Iowa State University and his M.S. degree in forest pathology from the University of Arizona and has over 40 years work experience in the horticulture, urban forestry and arboriculture industries. He is an ISA certified arborist and certified municipal specialist; American Society of Consulting Arborists registered consulting arborist; PNW-ISA TRACE instructor and certified tree risk assessor; and ISA TRAQ instructor and assessor.

Refund Policy

  • Cancellations made at least 10 days prior to the event will be refunded minus the PayPal processing fee (2.9% + .30 cents)
  • Cancellations made within 5-9 days of the event will be refunded at 75%.
  • 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.

Nearby Hotels

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


Idaho State Museum
610 Julia Davis Drive
Boise, ID 83702 United States
+ Google Map