Usefulness of Vineyard Fungicides as Antioxidants for Grapevines. R. C. Musselman, Former Research Associate, Department of Pomology and Viticulture, New York State Agricultural Experiment Station, Cornell University, Geneva 14456. E. F. Taschenberg, Professor, Department of Entomology, New York State Agricultural Experiment Station, Cornell University, Geneva 14456. Plant Dis. 69:406-408. Accepted for publication 23 October 1984. Copyright 1985 The American Phytopathological Society. DOI: 10.1094/PD-69-406.

The fungicides benomyl and triadimefon applied for powdery mildew (Uncinula necator) control to Vitis labruscana ‘Concord’ or ‘Ives’ in New York vineyards significantly reduced oxidant stipple injury on foliage. Both fungicides were similar in their effectiveness in reducing oxidant stipple injury. Increasing the number of applications of the fungicides reduced injury further, with best control obtained with weekly applications. The fungicides were more effective in controlling oxidant stipple injury on Concord than on Ives foliage.

Keyword(s): dinocap, etaconazole, ozone.