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Endothall Algaecides

Aquatic Endothall Algaecides for Lakes and Ponds 

Endothall Algaecides are alternatives to copper for direct algae control. The amine salt of endothall has algicidal activity and can be sprayed along the edges of ponds for control of mat-forming algae. Read and follow the herbicide label for endothall carefully as this herbicide can be toxic to fish if not used correctly.

Endothall is a simple acid that is degraded via microbial action. Water temperature and the level of microbial activity can have a strong influence on the rate of degradation. Cooler water temperatures typically result in slower rates of degradation.

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Hydrothol 191 Liquid Aquatic Algicide and Herbicide, UPI

Hydrothol 191 is a liquid formulation that provides control of both weeds and algae. Used primarily as an algicide at rates of 0.05-0.3 ppm, it provides excellent control of a broad spectrum of algae including planktonic, filamentous, and branched algae.

Active Ingredient: Dipotassium salt of endothal 53.3%

EPA Signal Word - DANGER / PELIGRO

From $221.95

Hydrothol Granular Aquatic Algacide and Herbicide, UPI

Hydrothol Granular Aquatic Algacide and Herbicide for algae and aquatic plant growth in quiescent, slow moving, and flowing water aquatic sites.

Active Ingredient: Endothall 11.2%

EPA Signal Word - DANGER / PELIGRO

From $106.95

Teton Aquatic Algicide and Herbicide, UPI

Teton Aquatic Algicide and Herbicide provides both submerged weed and algae control in irrigation canals throughout the Western United States.

Active Ingredients: Mono(N,N-dimethylalkylamine) salt of endothall 53.0%

EPA Signal Word - DANGER / PELIGRO

From $249.95