Scotts Turf Builder Triple Action Lawn Fertilizer with Weed Killer, 20 lbs. a powerful 3-in-1 formula designed to feed and strengthen your lawn while effectively killing and preventing listed weeds. This product targets broadleaf weeds such as dandelion and clover and prevents crabgrass for up to four months. It also helps control barnyardgrass, fall panicum, foxtail, and annual bluegrass, making it suitable for various grass types including Bahiagrass, Centipedegrass, Kentucky Bluegrass, Perennial Ryegrass, Bermudagrass, Tall Fescue, and Fine Fescue. Apply when dandelions are actively growing, ily in spring when daytime temperatures range between 60°F and 80°F, before the third or fourth mowing. A fall application can also control winter and cool-season perennial weeds. For results, apply when the grass is wet from dew or sprinkling to help the particles stick to weed leaves. Use a spreader as by the manufacturer, with specific settings for Scotts broadcast/rotary and drop spreaders. After 24 hours, water the lawn to wash the particles into the soil, preventing the germination of grassy weeds. Model Number: