Learn about Noxious Weeds

• Weed Photo Index - Quick photo ID table and links to information on noxious weeds
• Knotweed Control Video - four short videos on knotweed control techniques, including stem-injector instructions
• Weed Lists and Laws - King County Weed List, definition of noxious weed, Washington State Weed Law
• Brochures and Publications - Download weed bulletins and brochures
• Aquatic Noxious Weeds Slideshow (Note: slide show, 5.7 Mb) 
• Maps - see where noxious weeds have been found in King County, Washington 

Get Help and Participate

• Workshops and Events - schedule of classes and weed info booths, request a presentation
• Knotweed Control Workshops - contact us to be notified for next year's classes
• Volunteer Information - volunteer opportunities and links, funding sources for stewardship groups
• Lake Weed Watchers
• Mid Fork Snoqualmie Valley Weed Watchers
• Identify Weeds - weed identification assistance
• Weed Control Information  - how to control weeds, Best Management Practices, Integrated Pest Management
• Report a Noxious Weed Infestation - online form to report sightings of noxious weeds in King County
• Contact us with Comments - we would like to hear from you about how our staff performed, how we responded to noxious weed reports, if our information is helpful, and anything else you would like to share with us about our program and our work.

Learn about the Noxious Weed Program

The King County Noxious Weed Control Board carries out the mandates of the Washington State noxious weed control law, Chapter 17.10 RCW. The King County Noxious Weed Control Program works throughout the county to prevent and reduce the economic, environmental and social impacts of noxious weeds in King County, Washington. The program's focus is to provide education and technical assistance to landowners and public agencies to help them find the best control options for noxious weeds on each site and to reduce the overall impact of noxious weeds throughout the county.

• Noxious Weed Control Board  - information on the county weed board, meeting schedule
• Program Information - explaining who we are, what we do and frequently asked questions
• Annual Report - program performance and noxious weed trends in King County
• Links - to county, state, federal and to other invasive plant information

Program offices are located at 201 S. Jackson St., Suite 600, Seattle, WA 98104. To contact a member of the King County Noxious Weed Control Program, or to report a weed site, please call 206-296-0290 or reach them by e-mail.