Fraxinus and Emerald Ash Borer Tour

Fraxinus and Emerald Ash Borer Tour

Date(s) - May 31, 2023
12:00 pm - 1:30 pm


The tree-killing insect emerald ash borer was discovered in Forest Grove last summer and now poses a serious threat to both native Oregon ash, as well as the many introduced ash species planted in our urban forests. Ash mortality has reached almost 100 percent in areas already stricken by this pest.

On this tour, we’ll explore Hoyt Arboretum’s collection of trees in the genus Fraxinus, learn about diversity within the genus, and discuss likely scenarios for what urban foresters expect will happen to these trees and our urban canopy in coming years.

About the instructor: This tour will be led by long-time Hoyt Arboretum volunteer Jim Gersbach, who provides communication support for the Oregon Department of Forestry’s Urban Forestry program.

Tours are held rain or shine. Dress for the weather, and wear comfortable shoes for walking on trails. The route is approximately 1 mile and will include some ups and downs along the way. Most of the tour route will travel on well-graded paved trail or packed dirt/gravel trails.

Registration is required (group size is limited). Meet at the Hoyt Arboretum Visitor Center.

Read our adult education policies HERE.

If you qualify for an Oregon income assistance program, please email for details about further discounted program rates.

If you are interested in learning more about becoming a Hoyt Arboretum Friends member for discounted programs rates, please click HERE.



Bookings are closed for this event.

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