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J. Ray Frank and Daniel L. Kunkel

Since the IR-4 Project for Ornamental Uses was initiated in 1977, over 13,500 research trials have been conducted. This effort has lead to over 3100 label-registrations for fungicides, herbicides, insecticides, nematicides and growth regulators.

This cooperative program is conducted by Federal and State workers in conjunction with growers of nursery, floral crop and landscape plant materials.