1. Lewis County Noxious Weed Board Meeting

    To be held in the Lewis County Noxious Weed office at 19 SW Cascade ave, Chehalis WA 98532


    Weed Control - Aug. 2, 2023, 2:48 p.m.

  2. Aquatic & Riparian Noxious Weeds

    Aquatic weeds can be emerged, submerged or floating. An emerging plant is rooted underwater and has a structure emerging beyond the surface of the water (often on a stem, for flowers to be pollinated). A submerged aquatic plant exists entirely (or almost entirely) under the surface of the water (it may grow to touch the surface or produce near-surface flowers, such as Brazilian Elodea), and a floating plant will have roots in the underwater sediment but be attached to a leaf "floating" on the surface of the water.Riparian weeds grow along the banks of a waterway extending along the edge …


    Weed Control - Sept. 12, 2022, 11:27 a.m.

  3. WSU Extension Online Workshop: Pasture Weed & Grazing Management

    This class will discuss how to manage a healthy pasture by grazing management and weed control techniques. Learn methods to maximize grass production.No need to register, just pop in. Connection information (YOU MUST HAVE A ZOOM ACCOUNT!--sign up for one at zoom.us), thenjoin from PC, Mac, Linux, iOS, or Android: https://wsu.zoom.us/j/7756056320?pwd=RzVxbTl0dXpyUjJjSDdsWnJuTXdydz09Meeting ID: 775 605 6320Password: 12345You can also call in by phone (no Zoom account necessary).Phone Call: +1 253 215 8782 775 605 6320#For help, call Gary Fredricks at garyf@wsu.edu or 360-577-3014 Ext. 3. The workshop is sponsored by Washington State University Extension.Presented by: Kela Hall-Wieckert, Lewis Co. Noxious Weed …


    Weed Control - Oct. 20, 2022, 3:17 p.m.

  4. Field Bindweed

    Convolvulus arvensis Field Bindweed - An herbaceous perennial with extensive rhizomes that help it creep through fields and over plants.Leaves: Arrowhead-shaped leaves that alternate along the stem. Leaves have two lobes at the base.Flowers: Flowers bloom from April-October. Flowers are bell or funnel-shaped and are about 1 inch across. They range from white-pink and have bracts (scales) where the flower stem meets the plant stem.Habitat: It grows anywhere from full sun to full shade and is drought tolerant. Found in ravines, greenbelts, forested parks, farmlands, driveways, flower gardens, and ornamental bordersWeed Classification: CWhy is it a Noxious Weed?Once established it …


    Weed Control - Oct. 6, 2022, 9:33 a.m.

  5. Butterfly Bush

    Buddleja davidii Butterfly Bush - A profusely spreading deciduous shrub that was a popular ornamental and is now found throughout western Washington. The bush can reach 15' in height and has tall arching branches.Leaves: Usually 4-10 inches long and 1-3 inches wide, with toothed edges and opposite arrangement on the branch. The upper surface of the leaf is a deep green while the underside appears whiteish due to a dense covering of short fuzzy hair.Flowers: Flowers bloom from June-October. Showy spikes at the branch terminals can be 4 to 10 inches long. The small flowers are 4 petaled, bell-shaped and …


    Weed Control - Sept. 29, 2022, 9:45 a.m.

  6. Knotweed

    Fallopia x bohemica, Fallopia japonica, & Fallopia sachalinensis Bohemian knotweed is the hybridization of Giant and Japanese knotweeds. They vary slightly in the size and shapes of their leaves and flowers but otherwise look and behave very similarly.Knotweed - Clumping and spreading perennial hollow zig-zagging stems and long creeping rhizomes.Leaves: Large leaves are alternate, leathery, and oval. The base is slightly indented to deeply heart-shaped and leaf midveins have hairs.Flowers: Flower clusters commonly made up of male flowers and located at stem and branch tips. Clusters are around 8 to 13 ¾ inches long. Sepals are white to pinkish white …


    Weed Control - Sept. 13, 2022, 3:38 p.m.

  7. WSU AgWeatherNet: a tool to plan and manage farm operations

    The new Chehalis weather station that is part of the WSU AgWeatherNet system is a local resource for farmers and producers to plan and track weather conditions for weed control treatments and other farm management practices. The weather station was installed at the Chehalis Airport in February, 2016 to provide current and historical weather data. The data can be observed from a mobile phone or your desktop computer at http://weather.wsu.edu. Air temperature, windchill, dewpoint, wind direction, wind speed, soil temperature (2”, 8”), evapotranspiration, rain fall, relative humidity, atmospheric pressure and solar radiation is the weather data recorded on fifteen minute …


    Weed Control - March 1, 2016, 8:19 a.m.

  8. Chemical Treatment at Mineral Lake, Tuesday, August 31, 2021.

    UPDATE! This treatment was conducted on Tuesday, August 31, 2021. We expect to see a decline in the Eurasian watermilfoil over the next few of weeks. We thank the community of Mineral for their support and we thank our partners for working with us to get this treatment funded and completed!The Lewis County Noxious Weed Control Board has been granted coverage under the Washington State Department of Ecology Aquatic Plant and Algae Management General Permit WAG994515 to treat Mineral Lake with an aquatic herbicide to control Eurasian watermilfoil, a Washington State class B aquatic noxious weed.Understandably, community members may have …


    Weed Control - Aug. 11, 2021, 3:09 p.m.

  9. Lakes - Aquatic Weed Treatments

    Aquatic weeds pose a variety of risks, including flooding, habitat degradation, impeding water flow, decreasing recreational opportunities, and much more. Often forgotten about and less visually obvious to most people, aquatic weeds are frequently going under the radar. It is important for the public to be aware of the presence of aquatic weeds in the water bodies they visit and take measures to prevent their spread!The PlayCleanGo campaign provides excellent information on necessary precautions and procedures that should be taken by all, in order to reduce the spread of aquatic noxious weeds. Stop Aquatic Hitchhikers also offers a variety of …


    Weed Control - Sept. 6, 2022, 12:10 p.m.

  10. Hydrilla

    Hydrilla verticillata Hydrilla- Very similar in appearance to our native elodea (Elodea canadensis) and to Class B noxious weed Brazilian elodea (Egeria densa), this aquatic perennial is especially problematic in waterways and attempts to mechanically control will often perpetuate its spread.Hydrilla vs Native Elodea fact sheet from the New Jersey Water Supply AuthorityLeaves: Whorled formation of 3-10 (but most often 5) leaves with sharply toothed margins. There are often spines along the reddish midrib giving the plant a "velcro" feeling when pulled.Flowers: Transparent to white, female flowers with petals of 3 are attached to the stem tip by a slender …


    Weed Control - Sept. 26, 2022, 1:13 p.m.