Provides up to 4 Months of Crabgrass Control Provides Nutrients for Beautiful Healthy Lawns. Covers up to 4,500 Sq. Ft. Provides pre-emergent control in late fall and early spring on grassy and broadleaf weeds including Dallisgrass, Sandbur, Henbit and Spurge. A late season application helps prepare the lawn for survival in the winter and a quick green-up in the spring. Use Prior to Germination and Emergence.