R. C. Kemerait¹, Glendon H. Harris², J. E. Woodward³, F.H. Sanders¹, S. N. Brown⁴ and R. J. Byrne⁵, (1)Department of Plant Pathology, University of Georgia, Tifton, GA, (2)University of Georgia, Tifton, GA, (3)Texas Cooperative Extension, Lubbock, TX, (4)University of Georgia Cooperative Extension Service, Moultrie, GA, (5)Meherrin Agriculture and Chemical Company, Thomasville, GA