Site Information

 Loading... Please wait...

Pond Weed Control

How to Kill and Control Pond Weeds - We have many aquatic herbicides (pond weed killer) to use for specific weeds including Cutrine Plus, Navigate, Sonar, Reward, GreenClean and others. Proper weed identification is important. Some of our weed killers are broad spectrum and will kill a variety of weeds. Some work on contact, others work in the entire body of water. Sonar, for example, can last more than one season and is a broad spectrum weed killer.

Please note:  There are restrictions in some states for various chemicals.  Please check the below list.

The following states restrict the following EPA Registered Chemicals:

States: AK, CA, CT, ID, HI, ME, MA, NH, NJ, NY, RI, VT, WA.


Cutrine Plus Liquid
Cutrine Plus Granular
Cutrine Ultra
Aquathol Super K
Aquathol Liquid
Hydrothol 191 Granular
Shore Clear/AquaNeat

Alternative chemicals NOT EPA Registered that can be used in these states and elsewhere are:

Cygnet Plus
Cygnet Select


GreenClean is restricted in NY.

GreenClean Pro (SCGC50PRO) & GreenClean Liquid SCGCL5) are restricted in MA.

GreenClean Liquid is also restricted in NY, NJ, VT, and ME and can only be purchased and applied by a licensed applicator. If you are a licensed applicator, we need a proof of your license before shipping this product to you.

In cases where restrictions are not given in above chart, consult your State Conversation Commission or Fish and Game Department for specific restrictions.

Note: Copper sulfate is not included in this chart nor on our website as it is not recommended due to problems with copper build up in sediments and toxicity to aquatic organisms.

  • Sonar - 1 Pint, Treats Up To 1/2 Acre

    This pond weed killer is a specialty aquatic herbicide that controls almost all pond weeds. Sonar should be applied early in the season, prior to or just after plant growth begins. Very effective on duckweed and milfoil...

  • Sonar - 1 Gallon, Treats Up To Four Acre

    Sonar pond weed killer controls almost all pond weeds. 1 Gallon. No swimming or fishing restrictions. Kills pond weeds systemically. Very concentrated formula can be effective in the pond for more than one year.

  • Reward, 2.5 Gallon - Requires Shipping Via Hazardous Material.

    A concentrated aquatic herbicide that's been proven on a wide variety of aquatic plants including milfoil, cattails, duckweed, pondweed and others. This liquid herbicide is applied by sprayer and should not be applied to...

  • SCSOQ Sonar - Treats Up To One Acre (Depending On Plants)

    Pond weed killer that can kill almost all pond weeds. 1 Quart. Sonar™ Liquid concentrate: Sample 75' x 75' Pond (.13) Acre 4 ft avg depth. - Amount required: 4 Ounces Sample 105' x 105' Pond (.25) Acre 4 ft avg depth. -...

  • SCSO8 Sonar - Treats Up To 1/4 Acre (Depending On Plants)

    Sonar herbicide kills submerged pond weeds and floating duckweed and can last for more than one season. Sonar is a very concentrated product; a few ounces for a small pond can keep the weeds out all summer. No fishing or...

  • SCRO16 Shore-Klear, Quart

    Shore-Klear is a non-selective herbicide used around ponds, lakes and streams for control of cattails, brush and weeds that grow out of the water. It is not effective on plants that grow under (or mostly under) the water. ...

  • SCREW10 Reward, 1 Gallon

    Reward aquatic herbicide is a concentrated aquatic herbicide that's been proven on a wide variety of aquatic plants including milfoil, cattails, duckweed, pondweed and others. This liquid herbicide is applied by sprayer and...

  • SCNV50 Navigate, 50 Lb. Pail

    Navigate® granular aquatic herbicide is perfect for spot treating weeds around docks, beach areas and shorelines. Navigate® kills the roots of many plants such as Water Milfoil, Coontail and Water Lilies. This aquatic weed...

  • SCAQSK Aquathol Granular, Super K 10 Lbs

    Aquathol granular herbicide utilizes Culigel super absorbent polymer technology. Aquathol Super K is six times more concentrated than regular Aquathol. This means less product to handle, less labor to apply and reduced...