Jonathan Green Lawn Fungus Control provides a broad spectrum systemic control of soil-borne turf diseases. Jonathan Green Lawn Fungus Control is designed as a preventative solution for areas where fungus has been an issue before, helping to stop it from coming back. This effective fungicide targets common lawn diseases such as brown patch, leaf spot, red thread, dollar spot, and more, making it suitable for all types of lawn grass. It works when used to prevent or halt disease progression, although it cannot repair damage that has already occurred. This versatile formula can be applied during spring, summer, and fall to keep your lawn healthy and fungus-.