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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

Manufacturer: United Phosphorus Inc.

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.  Hydrothol 191 also provides control of aquatic vascular plants and can be tank-mixed with Aquathol K to improve the efficacy on difficult-to-control weeds. 

Hydrothol 191, works relatively quickly providing algae control in just a few days, and weed control similar to Aquathol K.  There are no restrictions on treated water used for swimming, fishing or irrigation

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.  Hydrothol 191 also provides control of aquatic vascular plants and can be tank-mixed with Aquathol K to improve the efficacy on difficult-to-control weeds. 

Hydrothol 191, works relatively quickly providing algae control in just a few days, and weed control similar to Aquathol K.  There are no restrictions on treated water used for swimming, fishing or irrigation

Hydrothol 191 Key Benefits

  • Minimal water use restrictions
  • Controls both weeds and algae
  • Works quickly

Responsible Product Use:

Some products sold by Shoreline and ShorelineAquatic.com carry varrying product use restrictions by federal, state and or locale. Product purchasers are responsible for determining the suitability and legality of the use of our products in their state, locale or for their intended use.  The products we distribute may not be registered for use or may be listed as a local or state "RESTRICTED USE PESTICIDE" in your state or locale i.e. NY, WA and CA.

It is the purchaser and applicators responsibility to check to be sure a product or specific use is approved in your state or locale before purchase or subsequent product use. Check current product labeling or your local state agency for more information. Most current product labels are available by visiting the product manufacturers websites or at https://www.cdms.net . 

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