Controls Henbit, Dollarweed, Chickweed, Clover, Sandspur and others listed on label. Controls both emerged weeds and weeds from seed in St. Augustine and Centipedegrass. This product may be applied during both dormant and growing seasons. Best results are usually obtained when applied in early Spring or dormant periods when weeds are small or have not emerged. Do not apply more than two treatments per year. | Hi-Yield Ready to Use Atrazine Weed Killer | Size 32 oz