Western Tree Failure Database Annual Meeting
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Non Members
$190.00
Non WCISA Members
Join us for a dynamic day of learning, discussion, and connection at our Western Tree Failure Database Annual Meeting, and we are back at the scenic Filoi Center in Woodside. This year the annual meeting will feature leading experts in arboriculture and forest management, offering insights from decades of research and practice. Topics include tree failure case studies, arborists’ assessments of stem decay, and post-fire recovery in Los Angeles. A special session reflects on twenty-five years of discoveries in tree biomechanics, followed by “Ask the Speaker,” where attendees can engage directly with presenters. The program concludes with training for new cooperators, led by Katherine Jones, WTFD Manager, ensuring participants gain both scientific knowledge and practical skills
Agenda

Call For Case Studies
If you know of an interesting, significant, or extraordinary tree failure — and would be willing to make a 15-minute presentation at the WTFD Annual Meeting — please send an email message to Larry Costello (larrycostello@me.com). Please provide basic details, such as species, type of failure, and likely cause of failure. Case study presenters will receive a complimentary registration for the meeting. Submittals required by December 15, 2025.
Early Registration (through 1/5/26):
$165 - WCISA Member
$190 - Non-WCISA Member
$95 - Student/Senior
Regular Registration (on or after 1/6/26):
$200 - WCISA Member
$225 - Non-WCISA Member
$95 - Student/Senior
CEUs:
5.5 - CA/CTW/MS
2.0 - BCMA-P
3.5 - BCMA-M
0.5 - Optional for Cooperator Training
Location
Filoi Center
80 Cañada Road
Woodside, CA 94062