J. T. Walls¹, F.H. Sanders², J. T. Flanders³, J. Kichler⁴, M. Crosby⁵, A. Fulmer⁶ and R. C. Kemerait², (1)University of Georgia, Tifton, GA, (2)Department of Plant Pathology, University of Georgia, Tifton, GA, (3)University of Georgia, Cairo, GA, (4)University of Georgia, Oglethorpe, GA, (5)University of Georgia Cooperative Extension, Swainsboro, GA, (6)University of Georgia, Tifton, GA, Afghanistan