Crabgrass killer size=quart Contact and systemic action. Kills grasy weeds like crabgrass, goosegrass, broadleaf weeds like dandelion, black medic, chickweed, clover, creeping charlie, poison ivy, poison oak, speedwell, spurge, wild carrot, ground ivy and other listed weeds. One quart covers up to 6,600 sq. ft. Active ingredients: 2,4Dichlorophenoxyacetic acid 5.33 percent and 3,7Dichloro8quinolinecarboxylic acid 2.13 percent.