Skip to main content
King County logo

News and Upcoming Events

2018 Puget Sound Knotweed Forum Spring Meeting

April 18, 2018, 9:00am to 11:30am, at the Beaver Lake Lodge in Sammamish, 25201 SE 24th St, Sammamish, WA 98075


9:00-9:20       Welcome and Introductions

9:20-10:00     Panel Discussion - Education and Outreach for Invasive Species Management through Social Media
Sasha Shaw, Education Coordinator for the King County Noxious Weed Control Program will moderate a panel of specialists in a discussion on the use of social media in invasive species management. The panel will highlight personal experiences and share dos and don’ts when implementing social media projects, and answer questions from the group. 
Social Media Panel will include
Judy Blanco, Forterra
Claire Martini, Mountains to Sound Greenway
Michael Yadrick, Green Seattle Partnership/Seattle Parks
Justin Bush, Washington Invasive Species Council            
Dana Coggon, Kitsap County Noxious Weed Control Board 
Carrie Hawthorne, Digital Communications Consultant (formerly with Forterra) 

10:00-10:10    Break    

10:10-10:30    Ecosystem Services as an Outreach Strategy for Invasive Knotweed Control
Ben Harbaugh from the Center for Natural Lands Management and Evergreen State College will present the results of his Master’s research on effective topic strategies for framing the discussion of invasive knotweed control.     

10:30-10:50    Knotweed Treatment in the Metro Vancouver Area – British Columbia
Amy Hendel from Diamond Head Consulting in Vancouver, BC will discuss the status of knotweed in British Columbia, treatment methodology and the many challenges of working with knotweed in urban and riparian areas in British Columbia. 

10:50-11:10    Survey by Air: Helicopter Survey of Knotweed on the Skykomish River
Scott Moore with Snohomish County Public Works, Surface Water Management will present a brief summary of Snohomish County’s helicopter survey of the Skykomish River. Scott will show stills and video of the survey and highlight their process, comparing results from two approaches video to GIS and multispectral analysis. 

11:10-11:30    Wrap-up and Networking 

To register for the April 18 Meeting, email 

What is the Puget Sound Knotweed Forum?

Puget Sound Knotweed Forum WRIA Map - click for larger image

The Puget Sound Knotweed Forum brings together groups and agencies working to reduce the impacts of invasive knotweed in the Puget Sound region. Annual meetings are held to share ideas and solutions and to coordinate work being done across jurisdictional boundaries. Everyone is welcome and participants come from a wide range of government agencies and non-governmental groups.

For general information about the forum, contact Sayward Glise at the King County Noxious Weed Control Program.

Information on Past Forum Meetings 

2017 Spring Forum

2016 Spring Forum

2015 Forum

2014 Forum

2013 Forum

2012 Forum

2012 Presentations

2011 Forum

2011 Presentations