Chad from Longview, Texas writes
Southern Ag Atrazine Weed Killer for St Augustine Grass is only labeled for suppression of crabgrass therefore will not fully control it. Image Kills Nutsedge or Celsius WG Herbicide would be alternative options for post emergent control of crabgrass in St. Augustine lawns. Please view the individual product labels and our Crabgrass Treatment Guide for addtional information
Answer last updated on: 09/12/2022