Using T22

In large-seeded crops T-22 is applied as a powder in the seed hopper on their planters. Generally, growers fill the hoppers about half full, then add half the powder and stir with a stick. The hopper is then topped up with seed and the balance of the powder is added and the seed stirred again. For sweet corn, a hopper holding 25 lb of seed uses one 2 oz scoop of T-22 powder.

In greenhouse growing media T-22 is applied either as granules mixed with the medium or as a drench applied with the irrigation water. Granules are often easier and cheaper fro growers who mix their own medium, while the drench is useful for growers who fill their flats and pots with a prepared medium.

On turfgrass, granules are distrubuted on established turf. For new seedings, the grass seed is mixed with a different powdered formulation.

Detailed recommendations on specific uses of Trichoderma are beyond the scope of this web site. Such information about  specific products is available from the product listing at BioWorks.

T-22 has been registered for several crops and diseases, and more are pending. It is currently  registered to control root rot in:

Sweet corn Tomato transplants Field corn Flower transplants Soybeans Potatoes Dry and snap beans Turfgrass Cabbage Greenhouse poinsettias

Registrations applied for:

All vegetable crops  Strawberry gray mold (application by bees)  Raspberries  Grapes (spray for Botrytis bunch rot)