PlantShield HC Biological Fungicide is a preventative biological fungicide for control of plant diseases. The active ingredient is a microbe, Trichoderma harzianum Rifai strain T-22, which when applied to seeds, transplants or other propagative material, or to soil or planting mixes, grows onto plant roots as they develop and provides protection against plant root pathogens such as Pythium, Rhizoctonia, Fusarium, Cylindrocladium and Thielaviopsis. In the greenhouse, PlantShield HC Biological Fungicide is a preventative that suppresses foliar pathogens such as Botrytis and mildews on flowers, bedding plants and ornamentals.
NOTE: PlantShield HC Biological Fungicide contains live spores of a microbe that must be used prior to disease onset. PlantShield HC Biological Fungicide becomes active in soil or on plants when temperatures are above 50º F and is not effective while temperatures remain cold. PlantShield HC Biological Fungicide can be applied to sterilized or fumigated soil but MUST BE APPLIED AFTER STERILIZATION OR FUMIGATION.
PlantShield HC Biological Fungicide is for use in soil applications (drench, in soil furrow, and potting soil), greenhouse foliar applications on ornamentals, landscape plants, turf, and ornamental trees, including tree seedlings for transplanting into the forest.