Daconil ULTREX is a contact fungicide containing chlorothalonil that exhibits a multi-site mode of action which can delay or prevent resistance to single-site fungicides. It contains a built-in surfactant to provide superior sticking power for extended coverage and unsurpassed protection on the crown and sheath of grass blades, even after heavy rains or watering Key Features Controls 14 diseases, including dollar spot, brown patch, gray leaf spot, algae, leaf spot, melting out, anthracnose, rust, Fusarium patch, gray snow mold and red thread Provides excellent wide-spectrum disease control when partnered with Heritage, Banner MAXX II and Subdue MAXX Registered for control of 50 diseases on more than 75 ornamental plants Provides residual control for 14 to 21 days.