Scotts Healthy Turf Builder Fungicide and Lawn Food is a 2-in-1 lawn care product that contains a broad-spectrum and systemic fungicide for prevention and control of 27 types of lawn diseases, including brown patch, leafspot, powdery mildew, and red thread. In addition, the added fertilizer feeds for a thicker, greener lawn and strengthens each blade of grass down to the root to help your lawn recover from stresses. This fast-acting formula dissolves quickly to begin working in 24 hours, providing up to four weeks of control. Scotts Healthy Turf Builder Fungicide and Lawn Food is for use on most grass types. Apply prior to disease symptoms when conditions are favorable for disease and/or stressful periods. We recommend using a Scotts spreader to apply this product (please refer to spreader settings on product label). Water the treated area for 15-20 minutes after application. One 13.7 lbs. bag of Scotts Healthy Turf Builder Fungicide and Lawn Food covers 4,000 sq. ft.