Ferti-lome Winterizer & Weed Preventer II is a product that helps to prevent weeds and fertilizes the lawn.
It contains Dimension, a powerful herbicide.

It provides pre-emergent control in late fall and early spring on grassy and broadleaf weeds including Dallisgrass, Henbit and Spurge. It also helps to control crabgrass for up to 4 months.
  
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.

One bag covers 4,500 square feet.