Ortho WeedClear Lawn Weed Killer Base Wand, 1 Gallon, Ready to Use Weed Killer. Kills 250 + weeds. Won't harm the lawn,guaranteed. When used as directed. Results in hours. Works on Southern and Northern lawns. Active ingredients: Dimethylamine Salt of 2,4-D Acid 0.605%, Dimethylamine Salt of Mecoprop-p Acid 0.149%, Dimcamba Acid 0.026