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Aquatic Herbicides

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Proper identification of your aquatic nuisance plant is vital to determining which product to use. See the article “Identifying Aquatic Weeds and Algae” for additional information.

Click here for a summary chart of Aquatic Weed and Algae Control products.

  • $349.09 Quickview

    AQU10 Aquathol Granular Super K Herbicide – 10 lbs.

    Aquathol Super K Granular herbicide utilizing Culigel? super absorbent polymer technology provides control of a wide range of submersed weeds with a higher concentration of active ingredient than Aquathol K liquid. No shipment to AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, WA & Canada.
    $349.09
    $349.09 Quickview
  • $575.10 Quickview

    AQU20 Aquathol Granular Super K Herbicide – 20 lbs.

    Aquathol Super K Granular herbicide utilizing Culigel® super absorbent polymer technology provides control of a wide range of submersed weeds with a higher concentration of active ingredient than Aquathol K liquid. No shipment to AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, WA & Canada.
    $575.10
    $575.10 Quickview
  • $146.13 Quickview

    AQUL10 Aquathol K Liquid Herbicide – 1 gallon

    Aquathol K is one of the most versatile and effective aquatic herbicides ever developed. It?s an excellent Aquatic Habitat Management tool that can provide season long control of a broad spectrum of submerged weeds often found in small lakes and ponds. Aquathol K is not toxic to fish or other aquatic organisms and has a relatively short half-life in the water. Aquathol K provides control of aquatic weeds in a relatively short time, generally 3-4 weeks, and can provide long-term control depending on the application timing and the target species. No shipment to AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, WA & Canada.
    $146.13
    $146.13 Quickview
  • $297.63 Quickview

    AQUL25 Aquathol K Liquid Herbicide – 2.5 gallons

    Aquathol K is one of the most versatile and effective aquatic herbicides ever developed. It?s an excellent Aquatic Habitat Management tool that can provide season long control of a broad spectrum of submerged weeds often found in small lakes and ponds. Aquathol K is not toxic to fish or other aquatic organisms and has a relatively short half-life in the water. Aquathol K provides control of aquatic weeds in a relatively short time, generally 3-4 weeks, and can provide long-term control depending on the application timing and the target species. No shipment to AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, WA & Canada.
    $297.63
    $297.63 Quickview
  • $21.09 Quickview

    CK1 Cygnet Plus – 1 quart

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    Cygnet Plus is a liquid additive for use along with liquid herbicides and algaecides to enhance effectiveness. Restricted into CA, ID, WA and Canada.
    $21.09
    $21.09 Quickview
  • $41.09 Quickview

    CK2 Cygnet Plus- 1 gallon

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    Cygnet Plus is a liquid additive for use along with liquid herbicides and algaecides to enhance effectiveness. Restricted into CA, ID, WA and Canada.
    $41.09
    $41.09 Quickview
  • $380.29 Quickview

    CLIP5 Clipper Broad Spectrum Herbicide

    Clipper is a very versatile aquatic herbicide and has been showing excellent results in aquatic environments on a variety of plants. This product is fast, effective and breaks down quickly in water to leave no accumulation in the sediment - making it less of an environmental concern than other, more persistent herbicides. No shipment to AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, WA & Canada.
    $380.29
    $380.29 Quickview
  • $158.06 Quickview

    HARP40 Harpoon Granular Aquatic Herbicide – 40 lbs bag

    Treat from the bottom up! Harpoon granular aquatic herbicide sinks down to effective control bottom-growing, copper sensitive aquatic plant species. It is ideal for sites where water use cannot be restricted. Treated water may be used immediately for irrigation, animal consumption, swimming or fishing. No shipment to AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, WA & Canada.
    $158.06
    $158.06 Quickview
  • $118.63 Quickview

    HYD20 Hydrothol Herbicide – 20 lb. bag

    Hydrothol granular is a fast acting, contact herbicide effective on a variety of aquatic weeds including milfoil, coontail, hydrilla, sago pondweed, leafy pondweed, curly leaf pondweed and others. No shipment to AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, WA & Canada.
    $118.63
    $118.63 Quickview
  • $225.30 Quickview

    HYD40 Hydrothol Herbicide – 40 lb. box

    Hydrothol granular is a fast acting, contact herbicide effective on a variety of aquatic weeds including milfoil, coontail, hydrilla, sago pondweed, leafy pondweed, curly leaf pondweed and others. No shipment to AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, WA & Canada.
    $225.30
    $225.30 Quickview
  • $78.69 Quickview

    NAU10 Nautique Aquatic Herbicide – 1 Gallon

    Nautique is a fast-acting, economical herbicide that provides localized control of nuisance and exotic plants. This copper-based herbicide works on contact for spot and local treatment of tough weeds. Controls: Eel grass, Water celery, Hydrilla, Naiad, Elodea, Pondweed (several varieties) & more! No shipment to AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, WA & Canada.
    $78.69
    $78.69 Quickview
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