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 hr, 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. Water the treated area for 15 to 20 min after application. One 13.7 lb bag of Scotts Healthy Turf Builder fungicide and lawn food covers 4000 sq-ft.