Snapshot DG Pro - Pre-Emergent Herbicide - 25 Pound Bag Controls more broadleaf and grassy weeds in more ornamentals than any other preemergent herbicide Provides excellent plant tolerance and long-lasting broad-spectrum control Bonds tightly with soil particles and is low in water solubility, so it wont move out of the application zone Some weeds controlled: Barnyardgrass, Bittercress, Common chickweed, Foxtail, Goosegrass, Marestail, Oxalis, Ragweed, Spurge. See label for a complete listing of weeds controlled. Controls upto 115 broadleaf and grassy weeds. Use 2.3-4.6 pounds per 1000 sq feet. One bag covers 8,000 sq feet