BioAdvanced 10 lb. 5,000 sq.ft. Coverage Fungus Control for Lawns. This powerful formula cures and prevents common lawn diseases, including brown patch, dollar spot, red thread, and rusts. One application lasts for 1 month and works on contact and systemically for rainproof protection. It contains 0.51% propiconazole and treats up to 5,000 square feet.