C. S. Rothrock¹, T.L. Kirkpatrick², Tom Barber³, C. M. Coker⁴ and S. E. Smith¹, (1)Dept. of Plant Pathology, University of Arkansas, Fayetteville, AR, (2)University of Arkansas, Hope, AR, (3)U of A Division of Agriculture, Little Rock, AR, (4)U or A Division of Agriculture, Monticello, AR