Weed Watchers

This informative video gives step by step instructions on how to manually remove knotweed from your property.
Invasive spurge laurel

Invasive spurge laurel

Do you want to be a Weed Watcher? 

Keep an eye on this page for information on the 2018 Weed Watcher trainings!

Weed Watchers is the title we bestow upon volunteers who successfully complete our Weed Watcher training sessions, held annually in the spring. Most of the training is completed in a couple of hours in a classroom session. You’ll learn how to identify and report EDRR (Early Detection-Rapid Response) invasive species in our area. The more eyes on the ground, the better chance we have to keeping new invaders out. Become a Weed Warrior!  Just check our calendar and upcoming events for how to register for the next training.

EDRR promotes prevention methods such as cleaning your boots and bike tires to checking the spread of a new garden plant. If prevention isn’t possible, the most time and cost-effective way to manage new invasive plants is through EDRR efforts. They include early detection while weed populations are small and rapid control measures, increasing the likelihood that new invasions will not become established. EDRR protocol is practiced in a county-wide partnership that includes East Multnomah Soil and Water Conservation District and the City of Portland Bureau of Environmental Services (BES).

Please see our current EDRR Watch List and our Weed Watchers EDRR ID Guide.

Report any sightings in Multnomah County.

For more information about the Weed Watcher training, contact our Invasive Weed Program Coordinator, Michelle Delepine at or 503.238.4775, ext. 115.


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