Aquathol® Aquatic Herbicides

Eliminate Submerged Weeds


Cannot be shipped to: AK, CA, CT, DE, DC, HI, ME, MA, NJ, NY, PR, RI, VT, WA or Canada

  • 530159 - Liquid - 1 Gallon
  • $139.99
  • 3+ Gallons - $126.99 Each
  • 530196 - 1 Gallon with Treatment Booster™ PLUS
  • $149.99
  • 530136 - Super K Granular - 10 Pounds
  • $329.99
  • 3+ 10lb Bags - $299.99 Each
  • Eliminate Submerged Weeds
  • Available in Liquid or Granular Formulas
  • Great For Use In Turbid Ponds

Aquathol® aquatic herbicide effectively eliminates a wide variety of submerged weeds. As potency is unaffected by surrounding organics, Aquathol® is a great choice for use in turbid water with excess organic debris. Aquathol® can be used on water bodies with slowing moving or flowing water. It begins working on contact with submerged weeds to break down cell structure and inhibit protein synthesis. This pond herbicide is available in liquid or granular formulations to best suit the weeds being treated.

Tech Specs

Usage Information

Aquathol Liquid 1 Gallon
K - 1 Gallon
Aquathol Super K Graular 10 Pounds
Super K - 10 Pound
Application Liquid Granular
Dosing Rate Depth Avg Depth 4' Avg Depth 4'
Temperature Restriction None None
Treatment Area Per Container Up to 16,000 Square Feet Up to 25,000 Square Feet
Shelf Life 2 Years 5 Years

Dosage Rates

Treatment Area (Square Feet)
Aquathol® K Liquid Spot Treatment (Ounces)
Aquathol® Super K Spot Treatment (Pounds)
1,000 Sq Ft 16 - 31 oz 0.8 - 1.6 lbs
2,000 Sq Ft 32 - 61 oz 1.6 - 3.2 lbs
3,000 Sq Ft 48 - 93 oz 2.4 - 4.8 lbs

Treatment Area (Square Feet)
Aquathol® K Liquid Whole Pond
Aquathol® Super K Whole Pond
10,000 Sq Ft 80 - 150 oz 4 - 8 lbs
20,000 Sq Ft 160 - 300 oz 8 - 16 lbs

Please note: Above are recommendations. Always read the product label.

*The above dosage rates are at an average depth of four feet.

How To Apply

Aquathol® K Liquid may be applied as a concentrate or diluted with a surfactant and water depending on the equipment. Treatment Booster™ PLUS surfactant can be used with Aquathol® K to increase the chemical effectiveness.

Dilution rate: 16 ounces Aquathol® K Liquid, 2 ounces Treatment Booster™ PLUS with 1 gallon of water in a tank sprayer. Inject the solution below the water surface for submerged weeds or on foliage above the water's surface on a calm day to keep sprayed contained to target areas. Completely wet foliage for best results. Treat only up to half of the pond's surface and wait 10-14 days before a second treatment. During hot weather or when treating heavy growth, it is important to treat no more than ¼ of your pond at a time and wait the full 14 days before re-applying. This helps lower the risk of fish loss during hot weather or when treating heavy growth.

Aquathol® Super K Granular Application - Aquathol® Super K is a contact herbicide; consequently, apply when plants are present. Apply Aquathol® Super K as evenly as possible over areas to be treated.

Use a tank sprayer or granular spreader and apply according to label instructions. Over time, the weeds will begin to brown and die. Once completely dead, use a rake, like the Pond & Beach Rake, to remove dead weeds to prevent an accumulation of dead plant material and muck.

When To Apply

Aquathol® has no temperature restriction, but it should be applied when weeds are actively growing.


  • Wait 7 days before using treated water for human drinking water.
  • Wait 7 days before using treated water for domestic animal and livestock drinking water.


Replacement Parts

Here are the replacement parts for Aquathol ® Aquatic Herbicides.

Weeds Treated

The first step towards effectively treating any pond weed is proper identification. Aquathol® Aquatic Herbicides is recommended for use against each of the weeds listed below. Click on your desired weed for more information and alternate control options.

  • American Pondweed
  • Coontail
  • Curly Leaf Pondweed
  • Eurasian Watermilfoil
  • Hydrilla/Elodea
  • Parrot Feather
  • Sago Pondweed
  • Southern Naiad

Customers Also Purchased