The 4-County Cooperative Weed Management Area (CWMA) is excited to announce our annual weed symposium is scheduled for January 28th, 2026. And we’ll once again be at the Kennedy School!
ODA and WSDA pesticide recertification credits are anticipated for attendees (approval pending).
Questions? Email the 4 County CWMA Coordinator at info@4countycwma.org.
Expand the section below to view the agenda. Presentation resources will be added after the event.
Event Agenda (PDF)
9 am | Welcome Remarks & 4-County CWMA Highlights
Brendan Fordyce (Clackamas SWCD)
9:15 am | Invasive Species Hotline Redevelopment
Jacob Rose (Institute for Natural Resources)
9:30 am | Ethnobotany of Invasive Species
Annabelle Samson (West Multnomah SWCD)
10:00 am | Invasive Species Management Post-Wildfire
Sierra Bloomer (Clackamas SWCD)
10:30 am | Technical and Scientific Review Committee Update
Justin Cooley (Clackamas SWCD)
10:35 am | Morning Break
11:00 am | The Climate Adaptation Knowledge Exchange (CAKE)
Kathryn Braddock (EcoAdapt)
11:30 am | Backyard Habitat Programmatic Updates
Susie Peterson & Katherine Noble (Columbia Land Trust)
12:00 pm | Lunch
1:10 pm | Utilizing Clethodim to Control RCG in Riparian and Wetlands
Blaine Kisler (Clark County Public Works)
1:40 pm | Mapping and Data Committee Update
Tyler Pedersen (Tualatin SWCD)
1:45 pm | Mediterranean Oak Borer: Update from ODF
Christine Buhl (Oregon Department of Forestry)
2:15 pm | Afternoon Break
2:40 pm | Steering Committee and Capacity Planning Subcommittee Updates
Adrienne St. Clair (Metro), Aaron Shaw (Tualatin SWCD)
3:00pm | New Weeds of Concern
Mitch Bixby (City of Portland BES)
3:25pm |Closing Comments
Brendan Fordyce (Clackamas SWCD)
4 PM | Happy Hour
