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  • Duckweed Control Pond Treatment

    Duckweed Destroyer Package

    $140.97 - $585.92
    Duckweed Destroyer Pack - Duckweed Control Fast Duckweed Killer Pack includes Cutrine Plus, Harvester, and AquatiStick This "chemical cocktail" is a fast, effective treatment for duckweed, watermeal, and mosquito fern.  This is also...
    $140.97 - $585.92
  • Propeller Aquatic Herbicide

    Propeller 1 lb Aquatic Herbicide

    $119.99 - $140.98
    Propeller Aquatic Herbicide 1 lb (16 oz) Propeller is effective for controlling a broad range of floating, emergent, and submerged pond weeds. Use Propeller to get rid of tough weeds like watermeal and duckweed. Complete kill within 7-14 days...
    $119.99 - $140.98
  • Navigate 2-4D Herbicide for pond weeds

    Navigate Granular Herbicide 50 lb

    $329.99
    Navigate Granular Aquatic Herbicide 50 lb This product is formulated on special heat treated attaclay granules that resist rapid decomposition in water, sink quickly to lake or pond bottoms and release the weed killing chemical into the critical root...
    $329.99
  • Cattail Killer Pack to kill cattails

    Cattail Killer Pack

    $238.97 - $807.93
    Cattail Killer Pack - best chemical to kill cattails Control Cattails and Stands of Phragmites Kills weeds to the roots Perfect for cleaning up shorelines of emergent aquatic weeds Mixture yields faster results than aquatic herbicide alone The...
    $238.97 - $807.93
  • Tsunami DQ Diquat Aquatic Herbicide

    Tsunami DQ Aquatic Herbicide 32oz

    $59.99 - $78.98
    Tsunami DQ Aquatic Herbicide - Pond Weed Killer 32oz treats 5,000 square feet Tsunami DQ is a diquat herbicide designed to target both submerged and floating pond weeds. This is a broad spectrum, non selective herbicide that is designed for aquatic use...
    $59.99 - $78.98
  • Tsunami DQ Diquat Aquatic Herbicide

    Tsunami DQ Aquatic Herbicide 1 gallon

    $159.99 - $201.97
    Tsunami DQ Aquatic Herbicide - Pond Weed Killer 1 gallon treats 20,000 square feet Tsunami DQ is a diquat herbicide designed to target both submerged and floating pond weeds. This is a broad spectrum, non selective herbicide that is designed for...
    $159.99 - $201.97
  • Cutrine Granular Algaecide

    Cutrine Plus Granular Algaecide 12 lb

    $69.99
    Cutrine Plus Granular Algaecide - our Best Selling String Algae Treatment Are you looking for a product that will help control string algae in your pond? Cutrine Plus Granular is designed to kill bottom-growing string algae aka filamentous algae...
    $69.99
  • clearcast herbicide for cattail control

    ClearCast Aquatic Herbicide 8 oz

    $69.99 - $88.98
    Clearcast Herbicide for Aquatic Weed Control Clearcast aquatic herbicide is the perfect remedy for overgrown shoreline weeds and emergent aquatic weeds disrupting the ecosystem of a pond. Cattails do not re-grow Use any time of year Can be used on...
    $69.99 - $88.98
  • Pondzilla natural pond treatment

    Pondzilla Pro Treatment Enhancer 1 Gallon

    $129.99
    PondZilla Pro Catalyst Treatment 1 gallon PondZilla Pro is an all-natural catalyst that enhances the breakdown of proteins and complex carbohydrates found in aquatic plants. Boosts algaecides and herbicides so they can penetrate plant...
    $129.99
  • Sonar RTU Pond Herbicide

    Sonar RTU Aquatic Herbicide 32 oz

    $139.99
    Sonar RTU (Ready To Use) Aquatic Herbicide Sonar RTU is a systemic aquatic herbicide formulated for long term control of aquatic weeds. Slow reaction time makes this pond treatment safe for fish. Sonar RTU is an ideal solution for homeowners...
    $139.99
  • aquatic weed mat for lake and pond

    Aquatic Weed Control Mat 12' x 24'

    $449.99
    Aquatic Weed Control Mat 12' x 24' - LakeMat Pro Take control of pond weeds without chemicals! This aquatic weed control mat is an excellent solution for states with aquatic chemical restrictions. The LakeMat Pro is also a great solution for homeowners...
    $449.99
  • Plex Mate Surfactant 1 Gallon

    Plex Mate Surfactant 1 gallon

    $59.99
    Plex Mate Surfactant - Herbicide and Algaecide Treatment Enhancer Plex Mate is a surfactant that is used to increase the effectiveness of aquatic herbicide and algaecide treatments. Plex Mate aids your chemical stick to the targeted pond weeds. Adding a...
    $59.99
  • Aquathol Pond Herbicide

    Aquathol K- 1 gal Aquatic Herbicide

    $179.99 - $200.98
    Aquathol K Aquatic Herbicide Treatment  Broad Spectrum Contact Herbicide for Submerged Weed Control. This aquatic weed killer will kill vegetation to the roots. A great treatment choice for turbid water with excess organics Spray on actively...
    $179.99 - $200.98
  • Clearcast glyphosate alternative

    ClearCast Aquatic Herbicide 32 oz

    $169.99 - $207.97
    Clearcast Herbicide for Cattail Control Clearcast aquatic herbicide is the perfect remedy for overgrown shoreline weeds and emergent aquatic weeds disrupting the ecosystem of a pond. Cattails do not re-grow Use any time of year Can be used on...
    $169.99 - $207.97
  • Pond Herbicide Sprayer

    Pump Sprayer 3 gallon capacity

    $53.99
    Pond Weed & Algae Sprayer - 3 gallon Pump Sprayer In order to effectively apply most liquid aquatic herbicides and algaecides, you need to disperse the solution via sprayer. Spray weeds in the areas where they are actively growing. Pour chemical...
    $53.99
  • Aquathol Super K Pond Herbicide

    Aquathol Super K- 10 lb Aquatic Herbicide

    $399.99
    Aquathol Super K Aquatic Herbicide Broad Spectrum Granular Aquatic Herbicide- Submerged Weed Control A great treatment choice for plants growing in deeper water Broadcast over actively growing plants 10lbs treats up to 12,500 square...
    $399.99
  • Sonar AS Pond Herbicide

    Sonar AS Aquatic Herbicide 8 oz

    $319.99
    Sonar AS Aquatic Herbicide for long-term control  Sonar A.S. is a systemic aquatic herbicide formulated for long term control of aquatic weeds. Slow reaction time makes this pond treatment safe for fish. Sonar A.S. is an ideal solution for managing...
    $319.99
  • Sepro MSO surfactant for use with Clearcast

    MSO Surfactant 8 oz

    $18.99
    MSO Surfactant herbicide enhancer 8 oz MSO stands for methylated seed oil which is the active ingredient in this adjuvant. This liquid is not a stand alone treatment. It is meant to be mixed with Clearcast or other Imazamox or Imazapyr aquatic herbicide...
    $18.99
  • Propeller Flumioxazin Herbicide

    Propeller 5 lb Aquatic Herbicide

    $589.99
    Propeller Aquatic Herbicide 5 lb Propeller is effective for controlling a broad range of floating, emergent, and submerged pond weeds. Use Propeller to get rid of tough weeds like watermeal and duckweed. Complete kill within 7-14 days.  Use...
    $589.99

Choose the Right Aquatic Weed Killer

Are aquatic weed killers safe for fish?

This is the number one question that pond owners ask before treating weeds in a pond. The answer is yes, but follow the aquatic herbicide label and be sure the pond is well aerated.

Selecting the right pond weed killer is important. You should use a good pond weed identification guide to determine what pond or lake weeds are present. You can then choose the best weed killer for treating the aquatic plant.

Are there different types of aquatic herbicides?

Yes, there are different types of aquatic herbicides. It is essential to understand the various options to make an informed decision. There are two main categories of aquatic herbicides: contact herbicides and systemic herbicides.

Contact herbicides work by directly killing the plant upon contact. They are effective for treating floating or emergent pond weeds on the water surface or along the shoreline. Pond managers spray these herbicides directly onto the targeted plants, causing them to wither and die. Contact herbicides are generally fast-acting and provide immediate results.

The plant absorbs systemic herbicides and then transports them throughout its system killing it to the roots. This type of herbicide is effective for treating submerged weeds or those with extensive root systems. Cattails and water lilies have extensive root systems and are best treated with a systematic aquatic herbicide.

People usually apply systemic herbicides to the water allowing the plants absorb them which gradually kills them over time. They are a more long-term solution and may require multiple applications for complete pond weed control. Systematic aquatic herbicides kill pond weed more slowly than a contact herbicide, but the effect is longer lasting.

Duckweed and water milfoil are difficult to kill so a combination of products may be used. These small plants reproduce so rapidly that both a contact herbicide and systematic herbicide can be used to quickly kill the weeds that the spray contacts and prevent growth of more floating pond weeds in the future.

When selecting an aquatic herbicide, it is crucial to consider the specific weed problem you are facing. Certain aquatic herbicides target specific types of weeds, while others provide a broader spectrum of control.

Always read and follow the instructions on the herbicide label carefully to be sure your application is fish safe.

What is the difference between liquid and granular aquatic herbicides?

Liquid and granular aquatic herbicides are two different forms of herbicides that are used to control weeds in ponds and other aquatic environments. The main difference between the two lies in their physical form and how they are applied.

Liquid herbicides are concentrated and typically require mixing with water. Adding a surfactant helps the chemical to stick to and penetrate the weed. Spray the herbicide directly onto the water surface or exposed plants.

Liquid pond herbicide sprays are effective in targeting submerged weeds and floating plants. Plants easily absorb liquid herbicides yielding quick results.

Granular weed killers are in a solid form of weed killer pellets or small granules. They are typically spread over the water surface or directly onto the targeted weeds. Granular herbicides are effective in controlling emergent and shoreline weeds. They slowly dissolve in water, releasing the herbicide over time.

This allows for a longer-lasting effect and can be beneficial in treating larger areas. Granular or pellet weed killers can be used to prevent growth early in the growing season since they sink to the bottom. This type of lake weed killer is often used when there is a lot of water flow that would dilute a liquid herbicide.

Both liquid and granular herbicides have their advantages and disadvantages. Liquid herbicides are generally easier to apply and provide quicker results, but they may require more frequent applications. Granular herbicides, on the other hand, have a longer-lasting effect but may take longer to show results. The choice between the two depends on the specific weed problem and the desired outcome.

Remember, it is very important to have a pond water aerator running after an aquatic herbicide treatment!