1. Chehalis River Knotweed Treatments

    Chehalis Knotweed Treatments have begun! After surveying Rock and Halfway Creek tributaries, the Lewis County Noxious Weed Control team has started Knotweed treatments in Pe Ell. If you have any questions about knotweed control or the long term treatment plan, please reach out to us at Weeds@Lewiscountywa.gov. Because of its ability to easily spread downstream, we must start our efforts at the tributaries of the headwaters of the Chehalis river.


    Weed Control - Aug. 29, 2022, 2:32 p.m.

  2. Contact Noxious Weed Control


    Weed Control - Jan. 28, 2019, 11:08 a.m.

  3. 2019 Preliminary Budget Mtg.- Weed Control

    Please see attached agenda.


    Commissioners - Oct. 1, 2018, 9:01 a.m.

  4. 2022 Noxious Weed Conference

    The majority of your Noxious Weed Control staff will be out of the office from Tuesday November 1st to Friday November 4th to attend the annual Noxious Weed Conference in Wenatchee WA. This is a great opportunity for us to learn, engage, network and maintain our pesticide licenses.We will have our seasonal personnel in the office (attending the conference virtually) in case anyone needs to stop by for native seeds or to borrow a weed wrench.If you are interested in more information about the conference please see their website here. This conference provides a convenient (and fun) way to maintain …


    Weed Control - Oct. 26, 2022, 9:13 a.m.

  5. LCNWCB presents: Lincoln Creek Noxious Weeds; ID & Control


    Weed Control - Nov. 30, 2023, 2:10 p.m.

  6. Deadline for Weed Board member applications


    Weed Control - Dec. 19, 2019, 2:28 p.m.

  7. Deadline for Weed Board Application Submittal


    Weed Control - Feb. 21, 2020, 9:31 a.m.

  8. Meet the Board

    Weed Board members are volunteers appointed by the Board of County Commissioners, in accordance with the process laid out in the RCW 17.10. Board members serve a term of four years and each represent one of the five Weed Districts within Lewis County. Weed District Map. Katherin Humphrey District One: representing the Adna, Curtis, Boistfort, Pe Ell, and Dryad communities Katherine has lived in the Boistfort Valley her whole life except for 7 years she spent in Pullman. She holds a degree in Crop Science, a minor in Ag Econ and then supported her husband through vet school. Katherine is …


    Weed Control - Sept. 13, 2019, 10:45 a.m.

  9. Get Ready for Spring!

    Our tips on how to maximize your weed control success


    Weed Control - Feb. 5, 2021, 2:46 p.m.

  10. Knapweeds (Spotted, Diffuse, and Meadow)

    Centaurea spp. (stoebe, diffusa, and x moncktonii) Spotted Knapweed Rosette Spotted Knapweed Diffuse Knapweed Rosette Diffuse Knapweed Meadow Knapweed Meadow Knapweed rosette Spotted Knapweed - A biennial or perennial that typically grows about 5 feet tall and has a stout taproot. Is hairy with a rough and woolly appearance. First year rosettes and second year flowering stems.Leaves: Rosette leaves deeply lobed, upper leaves are generally un-lobed.Flowers: Flowers bloom from June-October. Solitary flowerheads. Egg-shaped plant scales (bracts) with a black/brown triangular tip that make the plant look spotted.Diffuse Knapweed - An annual, biennial, or perennial plant growing up to around 3 …


    Weed Control - Sept. 29, 2022, 9:48 a.m.