Hydrothol Granular Aquatic Algicide and Herbicide, 20 lb. Bag

For the control of algae and aquatic plants in quiescent, slow moving, and flowing water aquatic sites such as drainage canals, lakes, and ponds. Effective against a broad range of planktonic, filamentous, and branched algae. For light to moderate infestations of planktonic and filamentous algae, apply at 0.05 to 0.3 ppm (3 to 16 lbs. per acre foot). Higher labeled rates should be used for branched algae species. For the control of aquatic plants, apply at 0.5 to 5.0 ppm (27 lbs. to 270 lbs. per acre foot). Apply as evenly as possible where target algae and plants are present. Active ingredient is 11.2% Mono(N,N-dimethylalkylamine) salt of endothall.