Kills stubborn surface and submerged weeds that are copper resistant.
Read our Pond Care Guide to identify the most common types of algae and submerged weeds, and to see our handy 4-step program to get your pond ready for summer!
The Diquat formulas of this non-selective herbicide effectively kill submerged and floating pond weeds that are copper-resistant. Works on: duckweed, watermeal, water hyacinth, pondweed, slender leaf pond weed, coontail, and more. A diquat dibromide (37.3%) herbicide, it can be blended with other herbicides for many uses. Use at a rate of 2-8 quarts per surface acre depending on infestation and aquatic weed type. Classified as state-restricted in AZ, VT, CA, CT, MI, NH, NJ and NY. Ship wt 3 lb.