If you have questions or want to work directly with your local 4-County CWMA partner:
Clackamas County: contact the Weedwise Program.
Clark County: contact the Clark County Noxious Weed Control Board.
Multnomah County: email our Multnomah County partners.
Washington County: email Tualatin SWCD.
Once an invasive species is reported, the nearest partner organization will verify the species and determine the most effective response.