Terrazole L is an effective soil fungicide for prevention and control of damping-off, root rot and stem diseases caused by Pythium and Phytophthora species in ornamental, nursery crops and golf course tees and greens. Terrazole L works by inhibiting lipid peroxidation Terrazole L works both as a curative and as a preventative fungicide For best control, apply Terrazole L when disease symptoms first begin