Use Scotts DiseaseEx Lawn Fungicide on home lawns to prevent disease before it appears and control disease at the first sign of symptomsControls 26 listed lawn diseases, including brown patch, stem & stripe rust, red thread, powdery mildew, necrotic ring spot, and pink patchThis fungicide for lawns starts working within 24 hours of application, and continues to control diseases up to 4 weeksFor best results, begin applications of this lawn care treatment prior to disease symptoms, or when conditions are favorable for diseaseOne 10 lb. bag of Scotts DiseaseEx Lawn Fungicide 10 lb. bag treats up to 5,000 sq. ft.