Trichoderma harzianum (T-22G, F-Stop) - Registration 8/95
August 2, 1995
Mr. Thomas E. Stasz
Vice President for Technology
Development and Legal Affairs
122 North Genesee Street
Geneva, NY 14456
Dear Mr. Stasz:
Re: Registration of T-22G Biological Plant Protectant Granules (EPA
Reg. No. 68539-3)
The New York State Department of Environmental Conservation has accepted
your application to register the referenced product for use as a
biological fungicide in New York State. This product will be used for
control of soil-borne pathogens in soil, turf, or greenhouse planting
mixes as listed on the label. This product is classified as a general
T-22G contains the active ingredient 'Trichoderma harzianum' strain KRL-
AG2, which is an ubiquitous fungus in New York State. T-22G is applied
at a single application rate of 0.115 lbs. active ingredient/acre as an
in-furrow soil treatment on beans, cabbage, corn, cotton, cucumbers,
peanuts, potatoes, sorghum, sugar beets, and tomatoes. It can be added
to greenhouse soil mixes at a rate of 1.0 lbs. of product/100 lbs.
planting mix. T-22G can also be broadcast at a total rate of 1.5 lbs.
active ingredient/acre to turf over two applications. No adverse impacts
on the fish and wildlife resources of the State from the use of T-22G
have been identified. T. harzianum caused slight, reversible eye
irritation in rabbits. The New York State Department of Health noted
that adverse health impacts are not expected from the proposed uses for
T-22G Plant Protectant Granules if the personal protective equipment
requirements are followed.
This Department has reviewed all of the information submitted in support
of the registration, and we have determined that because of its non-
toxic nature and use pattern, and the fact that T. harzianum is
naturally-occurring and ubiquitous throughout New York State, the use of
T-22G Plant Protectant Granules as labelled should not result in
significant risks to human health or to the environment. Therefore, we
have registered this product for use as a biological fungicide in New
The accepted label is the federally registered label, as submitted.
Enclosed are the Certificate of Pesticide Registration and a copy of the
stamped "ACCEPTED" label for your records.
Please contact Ms. Maureen Serafini, of my staff, at (518) 457-7446, if
you have any questions.
Norman H. Nosenchuck, P.E.
Division of Hazardous Substances Regulation