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  2. You may have poison in your garden. Here are most fatal WA ...

    www.aol.com/news/may-poison-garden-most-fatal...

    Poison hemlocks can also grow up to 12 feet tall, according to the Washington Noxious Weed Control Board. Giant Hogweed The delicate flowers of the giant hogweed belie the dangers of this toxic plant.

  3. It’s noxious weed season in WA, does your yard have ... - AOL

    www.aol.com/news/noxious-weed-season-wa-does...

    The Washington State Noxious Weed Control Board has created an online weed search form that allows you to enter the habitat, color, leaf arrangement or if known, the name of the plant to identify ...

  4. Wet spring triggers explosive noxious weed growth in South ...

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    The most current statewide list, maintained by the Washington State Noxious Weed Control Board, identifies over 140 noxious weeds of interest and concern and classifies them by how important it is ...

  5. Meadow knapweed - Wikipedia

    en.wikipedia.org/wiki/Meadow_knapweed

    Meadow knapweed is considered a noxious weed in British Columbia, Idaho, Oregon, and Washington. [6] Cultivating areas is shown to reduce populations of meadow knapweed. Hand removal can be effective, but herbicide use is recommended. [7] The weevil Larinus obtusus is used as a biological control.

  6. Lamium galeobdolon - Wikipedia

    en.wikipedia.org/wiki/Lamium_galeobdolon

    In the U.S. state of Washington, it is listed as a Class B Noxious Weed and therefore banned from sale by state law. [61] [62] [63] It is also a B-listed Noxious Weed in the state of Oregon. [64] The variegated yellow archangel (Lamium galeobdolon subsp. argentatum) has become an invasive subspecies in several European countries.

  7. Yakima River Delta - Wikipedia

    en.wikipedia.org/wiki/Yakima_River_Delta

    Repeated efforts to control invasive species are conducted by the Benton County Conservation District and Noxious Weed Control Board. These efforts are to control common reeds, which tend to group together choking out native plants. Beyond this, they create a habitat for mosquitos, which then create a public health hazard. [12]

  8. Pierce County Noxious Weed Control Board reports can be made by calling 253-798-7263 Whatcom County Noxious Weed Board takes reports at 360-778-6234 Columbia County Weed Board can be reached at ...

  9. Tripleurospermum inodorum - Wikipedia

    en.wikipedia.org/wiki/Tripleurospermum_inodorum

    Tripleurospermum inodorum has been classified as a noxious weed (class C) in the state of Washington [11] and is considered invasive in other states (it is resistant to some herbicides); it is a weed of cereals in western Canada.

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