Scotts Turf Builder Triple Action I provides three benefits in one bag. This 3-in-1 formula kills and prevents listed weeds, all while feeding and strengthening your lawn. It kills listed broadleaf weeds like dandelion and clover, and prevents crabgrass for up to 4 months. It also prevents barnyardgrass, fall panicum, foxtail, and annual bluegrass. Scotts Turf Builder Triple Action I is for use on Bahiagrass, Centipedegrass, Kentucky Bluegrass, Perennial Ryegrass, Bermudagrass, Tall Fescue, and Fine Fescue. Apply when dandelions are actively growing. For spring application, apply when daytime temperatures are consistently between 60 Deg. F and 80 Deg. F and before the 3rd or 4th mowing. A fall application may be made to control fall-germinating winter weeds and cool season perennial weeds. Make sure your grass is wet from dew or sprinkling before applying, as this helps particles adhere to weed leaves to produce the best results. Manufacturer recommends using a spreader to apply this product. For Scotts broadcast/rotary spreaders, use a setting of 3 . For Scotts drop spreaders, use a setting of 6. After 24 hours, water the lawn to wash particles onto the soil to prevent the germination of grassy weeds.