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RootShield Granules Biological Fungicide, OMRI Listed, BioWorks

Quick overview RootShield Granules are based on the highly-effective hybrid fungus Trichoderma harzianum, strain T-22, RootShield protects roots from many pathogens including Pythium, Rhizoctionia, Fusarium, Thielaviopsis and Cylindrocladium. OMRI Listed.

Active Ingredient: Hybrid fungus Trichoderma harzianum, strain T-22

Signal Word - CAUTION / PRECAUCION

Perishable Product SALES ARE FINAL. No refunds, returns, or exchanges. This product is perishable.

RootShield Granules are based on the highly-effective hybrid fungus Trichoderma harzianum, strain T-22, RootShield protects roots from many pathogens including Pythium, Rhizoctionia, Fusarium, Thielaviopsis and Cylindrocladium. Within 24 hours RootShield blocks and actively attacks pathogens by “eating” them: ensuring uninterrupted plant growth.


One application protects roots for up to 12 weeks and costs less than 2¢ per 6-in pot.


Incorporated into field soil or container growing media, RootShield Granules grows on the plant’s root system and is compatible in all types of field soil, bark, coir, peat-based and soil-less mixes and will protect plugs, cuttings, liners and all container and field-grown plants. 

Product description

RootShield Granules are based on the highly-effective hybrid fungus Trichoderma harzianum, strain T-22, RootShield protects roots from many pathogens including Pythium, Rhizoctionia, Fusarium, Thielaviopsis and Cylindrocladium. Within 24 hours RootShield blocks and actively attacks pathogens by “eating” them: ensuring uninterrupted plant growth.


One application protects roots for up to 12 weeks and costs less than 2¢ per 6-in pot.


Incorporated into field soil or container growing media, RootShield Granules grows on the plant’s root system and is compatible in all types of field soil, bark, coir, peat-based and soil-less mixes and will protect plugs, cuttings, liners and all container and field-grown plants. 

Product variants
RootShield Granules Biological Fungicide, OMRI Listed, 40 Lbs.
RootShield Granules Biological Fungicide, 40 Lbs.
RootShield Granules are based on the highly-effective hybrid fungus Trichoderma harzianum, strain T-22, RootShield protects roots from many pathogens including Pythium, Rhizoctionia, Fusarium, Thielaviopsis and Cylindrocladium.
Delivery date: 3-5 days
$419.95
Additional information
Manufacturer: BioWorks Inc.
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