Trichoderma harzianum

Trichoderma harzianum

Formerly known as Trichoderma harzianum

Beneficial filamentous fungus

Other Beneficial Fungi


A beneficial fungus commonly included in soil and root-zone formulations to support root development, nutrient availability, and biological activity.

Trichoderma harzianum is widely used in agricultural biological products because it colonizes organic matter and the root zone. Depending on strain and registration, it may support root growth, nutrient cycling, and crop-protection functions.
Key Benefits
  • Root development
  • Root-zone biological activity
  • Nutrient cycling
  • Plant vigor
Formulation Availability

Wettable powder; Granular; Seed treatment; Soil amendment; Soil drench; Custom blend

Compatibility Notes

Compatibility varies with fungicides and preservatives. Any disease-control claims require strain-specific regulatory review and label support.

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