SedgeHammer Weed Killer
Active Ingredient: Halosulfuron-methyl ... 75.0%
Selective herbicide; same as Manage Herbicide.
Controls nutsedge (Yellow Nutsedge, Purple Nutsedge) in certain turfgrasses and landscaped areas. Each pack contains a .9 gram unit which will make 1 gallon of solution and will treat 1,000 square feet.
The new formulation includes a non-ionic surfactant, so there is no need to add any additives to the product.
Apply Sedgehammer when the nutsedge plant is actively growing. This allows the product to work its way down to the root nutlets and effectively eliminate the nutsedge.
Visual results will be seen in 7-14 days. The product goes to work immediately, but the results will not be seen for several days because it is eliminating the nutsedge plant starting with the roots and working its way up to the above-ground plant.
Sedgehammer often works with one application but, depending on the size and age of the nutsedge, additional applications may be needed to completely eradicate the nutsedge.
Cannot be shipped to HI, AK, WA.