Ash and Oak Workshop Series
Join the Oswego Lake Watershed Council for a free community workshop series focused on protecting the health of our urban forest. This program is supported by the City of Lake Oswego Municipal Grant Program and helps advance goals in the Urban and Community Forestry Plan.
Healthy trees play a critical role in addressing climate change, protecting water quality, and strengthening community resilience to climate impacts. Through this workshop series, participants will learn how to help monitor and protect local trees from invasive pests that threaten forests across our region.
Workshop Dates
Participants may sign up for one or both workshops:
- Saturday, March 28, 2026 | 9:30 AM – 12:30 PM
- Saturday, April 18, 2026 | 9:30 AM – 12:30 PM
Location
- Friends of Tryon Creek Education Pavilion
11321 SW Terwilliger Blvd, Portland, OR 97219
Registration is Required
What You’ll Learn
Participants will gain hands-on skills to help monitor forest health and support community-based tree stewardship:
- How to identify signs and symptoms of invasive beetles affecting local trees
- How pests such as the Emerald Ash Borer and Mediterranean Oak Borer impact forests
- How community members can contribute to tree inventory and monitoring efforts as community scientists
- Why protecting urban forests is important for water quality, stream temperature, and fish habitat
Why This Matters
The Emerald Ash Borer (EAB) is a non-native insect that kills ash trees and has caused widespread tree loss across North America. If ash trees are lost across the landscape, it can affect more than just the forest canopy. Fewer trees can mean warmer streams, reduced water quality, and degraded habitat for fish and wildlife throughout the watershed.
By learning to identify early signs of infestation and helping track tree health, community members can play an important role in protecting local forests.
Adult emerald ash borer beetle | David Cappaert