Terraguard® SC

Ornamental Fungicide

An effective disease control program combining Terraguard SC fungicide with good cultural and sanitary practices is the key to marketing healthier, more vigorous ornamental plants. Terraguard SC controls Rhizoctonia root rot, one of the most common soilborne diseases, as well as other hard to control diseases such as Thielaviopsis, Cylindrocladium, powdery mildew, and leaf spots.


Terraguard SC is a locally systemic fungicide that provides protection of hard to control diseases. Terraguard SC can be used as a cutting soak, soil drench, foliar spray or through chemigation for control of diseases on ornamental plants grown in enclosed commercial structures such as greenhouses, shadehouses and interiorscapes. It prevents diseases from attacking leaf surfaces as it penetrates the plant (where applied) to stop disease development. The chemical action of Terraguard SC makes it the ideal fungicide for fighting foliar as well as soilborne diseases.


Current state registrations

OHP Terraguard SC - Ornamental Fungicide

Labeled for use on:

Ornamental, non-bearing fruit (trees/shrubs) and greenhouse grown vegetables (tomato and cucumber). For use in the following sites: greenhouse and shadehouses, nurseries including Christmas tree/conifer plantations, interiorscapes.


Diseases controlled:

Rhizoctonia root rot, as well as other hard to control diseases such as Thielaviopsis, Cylindrocladium, botrytis blight, powdery mildew, rust, and leaf spots.



1 quart container, 12 per case.



Do not use on impatiens plugs. Always read and follow label directions when using this product.

  • EPA Registration Number70506-521-59807
  • Restricted Entry Interval (REI)12 hours
  • Chemical FamilyImidazole fungicides
  • MOA3
  • Active IngredientTriflumizole
  • Rate per 100 gallons2 to 8 to 16 fluid ounces
  • Rate per 1 gallon⅛ tsp, ½ tsp, 1 tsp
  • ApplicationDrench or spray