Prevent Brown Patch, Red Thread, and Powdery Mildew, and other common listed lawn diseases from getting in the way of a beautiful green yard with Scotts® DiseaseEx™ Lawn Fungicide. It's preventative when used on any lawn to stop diseases before they appear, and curative when applied on established lawns showing signs of disease. Starts working within 24 hours of treatment and continues to control common broad spectrum diseases for up to 4 weeks. Scotts® DiseaseEx™ controls 26 common diseases like: Brown Patch, Stem & Stripe Rust, Red Thread, Powdery Mildew, Pythium, Southern & Typhula Blight, Pink Patch, Necrotic Ring Spot, Summer Patch, Yellow Patch and more listed diseases. Apply this broad spectrum lawn disease control with a Scotts® Spreader. People and pets may re-enter the treated area after application. For best results, begin applications prior to symptoms of disease. May be applied after seeding or at seed germination. A 10-lb. bag treats up to 5,000 sq. ft.