SKU: 28031927013
herbicide granules

herbicide granules Hydrothol Lake Herbicide Granular 20 pounds by Lake Restoration

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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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Description

herbicide granules Hydrothol Lake Herbicide Granular 20 pounds by Lake RestorationHydrothol Granular with alkylamine endothall is a selective, rapid acting, contact herbicide and algaecide. Controls submersed weeds and algae in lakes, ponds, irrigation canals, and drainage ditches. Works rapidly enough to be effective in both still and slow moving water. May be harmful to fish at recommended application rates. Aquathol with a boost! The physical form, mode of action, and general usage of Hydrothol Granular are similar to Aquathol

Hydrothol Granular with alkylamine endothall is a selective, rapid-acting, contact herbicide and algaecide. Controls submersed weeds and algae in lakes, ponds, irrigation canals, and drainage ditches. Works rapidly enough to be effective in both still and slow-moving water. May be harmful to fish at recommended application rates.

Aquathol with a boost!

The physical form, mode of action, and general usage of Hydrothol Granular are similar to Aquathol Super K Granular. Where fish are present, application of Hydrothol Granular at rates over 0.3 ppm should be used only for spot treatments, narrow margins, or where some fish kill is acceptable. Do not treat more than 10% of a lake or pond at one time at application rates above 1.0 ppm.

When treating lakes or ponds with Hydrothol Granular, begin at shoreline and work toward center. Apply parallel to the shoreline. This will herd fish away from the treated area into deeper, untreated portions of the lake or pond.

Treat your entire pond for algae.

Lakes and Ponds:

Algae can be controlled with as little as 0.2 ppm of Hydrothol Granular when the entire pond is treated. For longer term control or spot treatments, use 0.5 to 1.5 ppm. Repeat treatment when growth reappears. For floating mats, scatter uniformly over the surface of the mat.

Weeds can be controlled with 0.5 to 3.0 ppm of Hydrothol Granular.  For most Pondweeds, 1.0 to 2.0 ppm will give excellent control.  When treating an entire pond you can use 25% to 50% less material.  

To determine pounds of Hydrothol Granular to use per 1,000 sq. ft.:

(application rate in ppm) x (average depth in feet) x (1.25) 

To use 1.5 ppm at an average depth of 4.0 feet:

1.5 x 4.0 x 1.25 = 7.5 pounds per 1000 sq. ft.

Canals and Ditches:
Irrigation canals or drainage ditches will require 3.0 to 5.0 ppm of Hydrothol Granular.

To determine pounds of Hydrothol Granular in canals and ditches:

(application rate in ppm) x (1000's of linear ft.) x (cross section in sq. ft.) x (1.25) 

To use 3.0 ppm over 2,000 feet with a cross section of 15 sq. ft.:

3.0 x 2.0 x 15 x 1.25 = 112.5 lbs.

Treat heavy infestations in sections of 1/3 to 1/2 of the total weed volume to avoid oxygen depletion.  Allow 5 to 7 days before continuing to untreated sections.

See Water Use Restrictions (Days).

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SKU: 28031927013

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Ade Nji
Alexandria, US
★★★★★ 4
Good value for the price
Color: Black, Size: 1
A good fit and good value for the money
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Reviewed in the United States on April 21, 2026
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MikeyDog
Pawtucket, US
★★★★★ 5
Plug That Hole!
Color: Black, Size: 1
I have been very pleased with how well this cover is holding up. It fits snugly into the receiver hole and stays put. Makes the back of the car look so much better and keeps dirt out of the receiver. Good Job! PLUS: I don't have to store the plug in the back of the car any longer! Hinged piece is still nice and flexible.
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Reviewed in the United States on September 12, 2025
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Talquin
Boise, US
★★★★★ 5
Well constructed! Tight Fit.
Color: Black, Size: 1
Great construction, very durable. A bit tight to install, but that is not necessarily a bad thing. It will certainly keep it from ever falling off.
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Reviewed in the United States on April 3, 2026
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David
Alexandria, US
★★★★★ 5
Easy to install.
Color: Black, Size: 1
Well worth the money and looks great.
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Reviewed in the United States on May 14, 2026
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Randy H.
Port Orchard, US
★★★★★ 5
Good hitch cover
Color: Black, Size: 1
This is a well made,tight fitting hitch cover but the holding strap is too small to go over the hitch lip so I used my wife’s hair dryer to heat it up a skosh and voila! Fit like a charm! I recommend this cover.
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Reviewed in the United States on February 22, 2026

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