Whats the best product to use for pond weed control?
If the weeds are growing on the ground at the shore or are above the waterline, use PondMaster® Surface & Shoreline Herbicide. For submerged weeds, use PondMaster Aquatic Herbicide. PondMaster Blue is a colorant that will also help control aquatic weeds by restricting the wavelength of sunlight penetrating the water.