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  • Home
  • Pond Help
  • Products
    • Aquatic Algaecides
    • Aquatic Biologicals
    • Aquatic Colorants
    • Aquatic Herbicides
  • Markets
    • Drinking Water
    • Irrigation Water
    • Recreational Water
    • Industrial Water
    • Aquaculture
  • Resources
    • Library
    • Latest News
    • Region Selector
    • Where to Buy
    • FIND A PRO
  • Ask the Experts
    • HAB toxins and animals
    • The Cause of Algae Blooms
    • How to Identify and Control Starry Stonewort

Pond-Klear™

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Aquatic Herbicide
Fast-acting duckweed and watermeal relief
WHERE TO BUY
Pond-Klear Aquatic Herbicide container next to hand with duckweed
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  • Before and after of small pond showing duckweed covering water before treatment, and clear water after treatment with Pond-Klear Aquatic Herbicide
    Herbicide icon
    Pond-Klear™ Aquatic Herbicide is a broad spectrum herbicide for submersed, emergent and floating pond weeds, including common invasives like duckweed, watermeal and eurasian watermilfoil. It is also effective against filamentous algae, such as Pithophora and Cladophora. The concentrated liquid is easy to use and provides fast results – showing activity in as soon as 3 days.
    • Fast, noticeable results controlling duckweed/watermeal
    • Controls a broad range of nuisance submersed aquatic plants at rates as low as 200 parts per billion (16 fl. oz. per acre foot)
    • Controls filamentous algae
    • Contact herbicide, quickly degrades in water column
    • Can be tank mixed with copper products
    • Concentrated liquid formula 
    Product information sheet
    Specimen label
    Request a SDS
  • Product Details

    • Available in 16 fl. oz. tip and pour container.
    • Concentrated liquid flumioxazin formula
    • ​US EPA Registration No. 8959-61
    WHERE TO BUY
    FIND A PRO
    Pond-Klear Aquatic Herbicide containers
  • Application

    • Mix with AB™ Brand Aquatic Adjuvant and Nonionic Surfactant and dilute with water before spraying on floating pond plants for best results.
    • Subsurface plants should be treated by applying the solution (16 – 32 fl. oz. per acre foot) evenly to the plants in the water column by inserting the spray nozzle underneath the water surface.
    • While rapidly absorbed by target plants, Pond-Klear™ Aquatic Herbicide is pH sensitive with an ideal application pH of 5 – 7. Check the pH of the water immediately surrounding the treated plants as it can exceed 8.5 by early to mid-day due to photosynthetic processes. Application of this product under high pH conditions may provide only partial control and regrowth will be likely.
    • Readily tank mixes with most aquatic herbicides and algaecides
    Image on top. Untreated duckweed

    Image on bottom. Duckweed dying, showing heavy discoloration 3 days after treatment with 3 fl. oz. per 1/4 acre
    Bright green duckweed in tank before treatment with Pond-Klear Aquatic Herbicide
    Dying duckweed in water tank 3 days after treatment with Pond-Klear Aquatic Herbicide
  • Regulatory

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    • No restictions on water for swimming, fishing or animals drinking the water
    • Wait 5 days to use treated water for irrigation purposes on food crops
    • Treated water may be used for irrigation purposes on turf and landscape ornamentals, depending on application method and depth (see product label for details) 
  • This product is registered with the U.S. Environmental Protection Agency (USEPA) in the following states. Registration status may be subject to change.
    For specifics on aquatic pesticide application permitting, contact your local state agency. Click here for a list of agencies.
    Alabama
    Alaska
    Arizona
    Arkansas
    California
    Colorado
    ​Connecticut
    Delaware
    Florida
    Georgia
    Hawaii
    Idaho
    Illinois
    Indiana
    Iowa
    Kansas
    Kentucky
    Louisiana
    Maine
    Maryland
    ​
    Massachusetts
    Michigan
    Minnesota
    Mississippi
    Missouri
    Montana
    Nebraska
    Nevada
    New Hampshire
    New Jersey
    New Mexico
    New York
    North Carolina
    North Dakota
    Ohio
    Oklahoma
    Oregon
    Pennsylvania
    Rhode Island
    South Carolina
    South Dakota
    Tennessee
    Texas
    Utah
    Vermont
    Virginia
    Washington
    West Virginia
    Wisconsin
    Wyoming
    Puerto Rico

    ​

Before & After

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 Starts killing duckweed and watermeal in just 3 days​
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