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ISA 2026 Annual International Conference is Almost Here

Join us for this year’s Annual International Conference taking place 10-12 August in Detroit, Michigan, U.S. The Annual International Conference provides a forum for participants to learn and network with others in the arboricultural field, featuring: 

Keynote speaker: Doug Tallamy, PhD 

Tallamy is the T. A. Baker Professor of Agriculture in the Department of Entomology and Wildlife Ecology at the University of Delaware. His presentation, “Nature’s Best Hope,” will detail how choosing the right plants for our landscapes can address the biodiversity crisis and help fight our climate crisis as well. Learn simple steps each of us can take to reverse declining biodiversity, and why we must change our adversarial relationship with nature to a collaborative one. 

Educational sessions 

This year’s conference will include over 40 educational sessions with opportunities to earn approximately 15.75 Continuing Education Units (CEUs). A full agenda can be found here.  

Pre-conference experiences 

Deepen your expertise and get acquainted with the host city early, with our pre-conference workshops and tours, including: “Earliest Urban Forestry - What 100 Years of Sustainability Looks Like!” “Community Canopy: A Journey through Detroit's Urban Forests,” a tour of the Detroit Institute of Art (DIA), “The Urban Tree Lifecycle Experience at Belle Isle - How City Trees Live On After Removal,” and the “ISA Tree Risk Assessment Calibration Session.”  

For more information about flight discountshotel discounts, registration, and more, click here. Standard registration rates are available now through August 5.  

Image Database

ISA has a vast inventory of arboriculture- and urban forestry-related images that were compiled with the help of our members and volunteers.

Through a partnership with Forestry Images, ISA has thousands of photos and graphics available for use. ISA either owns the photos or has permission to permit their use.

Access the Image Database to browse the collection of images.

International Tree Climbing Championships

Press Releases

For inquiries about ISA news and media opportunities, contact our Communications Specialist.