Terrazole® L is an emulsifiable concentrate (EC) formulation of the active ingredient etridiazole. Terrazole L is labeled for pythium and phytophthora control on ornamentals grown in production. It is also labeled for pythium control on golf course tees and greens. Containing 4 pounds of active ingredient per gallon, Terrazole L use rates are lower than competitive products. Terrazole L can be used as both a preventative and curative product and carries a 12-hour Restricted Entry Interval (REI).