Invasive Species

Invasive shiny geranium

Invasive shiny geranium

Invasive plants threaten our ecosystem by pushing out native plants and the beneficial insects and wildlife that depend on them. Property values, and timber and agriculture production can also be negatively impacted by invasive species. There are many benefits of managing invasive species like reduced erosion, enhanced wildlife habitat, improved aesthetics, and increased land productivity.

Our invasive species efforts focus on Early Detection-Rapid Response (EDRR) Weeds, and Common Weeds. Our EDRR program helps locate and manage priority invasive weeds before they can become established in our region. We target high risk species that are capable of wide-range ecological and economic impact, but that are still manageable because of their limited presence. Learn more about the EDRR program.

If you have questions, or wish to attend a Weed Watcher training, or have invasive weeds on your property, contact our Invasive Species Program Coordinator, Michelle Delepine, 503.238.4775, ext. 115 or

Learn more: Invasive Plants — Identify and root them out!

The Conservation District has a wide variety of publications, reports, photos, videos and programs to share with you on invasive weeds – search the Library for more information.




2016-2017 WMSWCD Annual Report

We’re pleased to announce that our 2016-2017 Annual Report is complete and can be downloaded here.   We encourage you to browse through this eye-catching publication to see a snapshot of our activities and accomplishments over […]

River View Cemetery Restoration Project

West Multnomah Soil & Water Conservation District began working with River View Cemetery in 2012 to restore over 14 acres of forested land covered with highly invasive weeds such as English ivy and “Traveler’s Joy” […]

Hummingbird Hill Forest Restoration Project

In 2013, West Multnomah Soil & Water Conservation District board member Jane Hartline met Carol Canning at a gathering in Linnton.  They quickly bonded over their distaste of English ivy, in particular the ivy covering […]