Hydrothol® Granular Aquatic Algaecide and Herbicide is a fast acting, EPA registered contact herbicide effective on a variety of aquatic weeds including milfoil, coontail, hydrilla, sago pondweed, leafy pondweed, curly leaf pondweed and others. Use early in the season when plants are young and easier to treat.
Active Ingredients: Mono (N,N-dimethylalkylamine) salt of endothall*, 11.2%
Use with caution, following all included instructions. Use only for spot treatment. This pesticide is highly toxic to fish, invertebrates, animals and humans.
Cannot be shipped to AK, AZ, CA, CT, HI, MA, ME, NJ, NY, VT and WA.