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Noxious weeds

King County, Washington

To offer a suggestion or report an error on the King County Noxious Weeds website, please contact Sasha Shaw, education specialist.

Class Schedule

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2014 Noxious Weed Control Seminar

Session Dates and Locations

Cost:  Free (pre-registration required)
How to sign up: Register online
Credits:  5 WSDA Pesticide License Recertification Credits

Presenters: The 2014 agenda features noxious weed control identification and control tips from the county's noxious weed specialists and live weed specimens on display, as well as special guest presentations by plant ecologist Clay Antieau from Seattle Public Utilities and biological control expert Jennifer Andreas from WSU Extension.

Note the new extended time for 2014.  There will only be a 30 minute break for lunch, so make sure to bring a sack lunch or enough snacks to tide you over until 1:30 pm.

All sessions have the same agenda, but immediately following the North Session, there will be a separate Knotweed Control Workshop (see below; register for each separately).

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2014 Knotweed Biology and Control Workshop - two sessions!

Session 1 - Kenmore - SESSION IS FULL
 May 14, 1:45-3:30pm
LocationNorthshore Utility District, 6830 NE 185th St., Kenmore, WA 98028

Session 2 - Preston
June 4, 9:00 am to 11:00 am
Location: Preston Community Center, 310th Ave SE and Preston Fall City Rd SE, I-90 Exit 22, Preston, WA 98027

Cost:  Free (pre-registration required)
How to sign up: Register online
Credits:  2 WSDA Pesticide License Recertification Credits

Presenters:  Frances Lucero and Sasha Shaw, King County Noxious Weed Control Program

This workshop will cover invasive knotweed identification, biology, and control. Included in the chemical control section, we will give instructions on the use and care of knotweed injection guns.

Knotweed Injectors:  Individuals completing this workshop will be eligible to borrow the county weed program’s injection guns.

NOTE:  The Kenmore session of this workshop is being held immediately after the North Session of our annual noxious weed control seminar (see above for more information). If you would like to attend both the noxious weed seminar and the knotweed workshop in Kenmore, please register for each separately.

Download agenda

The King County Noxious Weed Control Program offers workshops and presentations upon request for community groups, neighborhood councils, vegetation management professionals, volunteer events, garden clubs and a wide range of other groups. Please contact Sasha Shaw if you would like a presentation on invasive plants or noxious weeds for your group, staff or community.

Related information

Related agencies

Program offices are located at 201 S. Jackson St., Suite 600, Seattle, WA 98104. To contact staff, see the Noxious Weed Control Program Directory, send an email, or call 206-477-WEED (206-477-9333).