2023 Pull Together

Watercolor of person using weeds to make art

The 4-County Cooperative Weed Management Area is excited to announce the 14th annual Pull Together!

This year’s event will be held as a webinar, so you will be able to attend from the comfort of your own home or office. Join us to learn more about the status of emerald ash borer in Oregon, OSU Extension’s new Solve Pest Problems resource, harvesting weeds to make art, and a few exciting projects our member organizations have been working on. You won’t want to miss it!

Attendees will earn 2 pesticide recertification credits from ODA and WSDA.


If you missed the event, a recording is available:

Pull Together Recording


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Poster artwork and comics were illustrated by the talented Jon Wagner of East Multnomah Soil and Water Conservation District.

Event agenda

PDF Version

Wednesday, January 18th 2022 | 8:30 AM – 12:30 PM PST


8:30am   Welcome & Introductions

Aaron Shaw (Tualatin SWCD)


8:35am   Word from WIN

Presentation Slides | Courtney Gattuso (Western Invasives Network) | weeds@cascadepacific.org 


8:45am   4-County CWMA Data Standardization Template

Presentation Slides | Demonstration Video

Tyler Pedersen (Tualatin SWCD) | tyler.pedersen@tualatinswcd.org

Eli Staggs (Tualatin SWCD) | eli.staggs@tualatinswcd.org


9:15am   4-County CWMA Committee Updates

Steering Committee: Aaron Shaw (Tualatin SWCD)

Education & Outreach Committee: Mitch Bixby (Portland BES)

Mapping & Data Committee: Tyler Pedersen (Tualatin SWCD)

Technical & Scientific Committee: Michelle Delepine (West Multnomah SWCD)


9:30am   Emerald Ash Borer (EAB) in Oregon Updates

Presentation Slides | State of Emerald Ash Borer in OregonAlex Gorman (OSU Extension) | alexander.gorman@oregonstate.edu

Presentation Slides | Emerald Ash Borer Management – Mariah Davis (USDA – APHIS) |  mariah.davis@usda.gov


10:00am   New Plant Species Review

Presentation Slides | Mitch Bixby (Portland BES)mitch.bixby@portlandoregon.gov


10:15am   Break


10:30am   Alienweeds — The Invasive Plant Harvest

Presentation Slides | Patterson Clark | pattclark@gmail.com


11:00am   Solve Pest Problems

Presentation Slides | Weston Miller (OSU Extension) | weston.miller@oregonstate.edu


11:35am   Solve Pest Problems: A new pest management resource for the PNW

Presentation Slides | Portland Garlic Mustard Partners: A Decade in Review – Michelle Delepine (West Multnomah SWCD) | michelle@wmswcd.org

Presentation Slides | Hogweed in Portland – Mitch Bixby (Portland BES) |  mitch.bixby@portlandoregon.gov

Presentation Slides | Weedy Tree Removal for Fuel Reduction and Land Resilience in Lake Oswego – Jack Halsey (Oswego Lake Watershed Council) | jack@oswegowatershed.org


12:20pm   Closing Comments & Comics

Aaron Shaw (Tualatin SWCD)

Jon Wagner (East Multnomah SWCD)



Questions? Email Mitch Bixby at mitch.bixby@portlandoregon.gov.