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.