LEARN TREES WEBINAR SERIES

Wood Decay & Tree Biomechanics: Diagnosing Hidden Risks
February 27th, 2026
10:00am – 1:30pm MST
William Scott, Presenter

Course Description
Wood decay and biomechanical instability are major contributors to tree failure but can be 
difficult to detect and evaluate. This course reviews the biology of wood decay fungi, 
methods for identifying external and internal signs, and the application of biomechanics to 
predict failure potential. Case studies and diagnostic tools (resistographs, sonic 
tomography, visual inspection) will be discussed to provide arborists with practical 
approaches for evaluating hidden risks.

Emerging & Epidemic Tree Health Threats: Identification, Treatment & 
Prevention
March 27th, 2026
10:00am – 1:30pm MST
William Scott, Presenter

Course Description
Arborists face a growing array of new, expanding, and potential epidemic tree health 
threats. This course provides an advanced look at emerging insects, pathogens, and invasive 
species that may shape the future of tree care. Participants will learn to recognize early 
signs of invasive pests, expanding fungal and bacterial diseases, and shifts in pest pressure. 
Emphasis will be placed on diagnostic tools, laboratory testing, and monitoring 
technologies, as well as treatment and prevention strategies including integrated pest 
management (IPM), cultural practices, biological controls, and chemical options.

Building Resilient Urban Forests: Preparing Trees for Heat, Drought & Severe 
Weather
April 24th, 2026
10:00am – 1:30pm MST
William Scott, Presenter

Course Description
Urban trees face mounting stress from hotter summers, extended dry periods, and 
increasingly intense storm events. This course equips arborists with practical, sciencebased strategies to improve resilience before these challenges peak. Participants will learn 
how to strengthen tree defenses through spring interventions such as soil and water 
management, canopy care, and proactive planting decisions. Broader resilience tools—
including species diversification, improved planting systems, and site design innovations—
will also be addressed. The course highlights how both municipal forestry programs and 
private tree care companies play critical roles in preparing urban forests for environmental 
stress, focusing on applied arboriculture and measurable outcomes without political 
framing.

REGISTER HERE!