Scott Stewart¹, Sandy Steckel¹, Gus Lorenz², Angus Catchot³, Jeremy K. Greene⁴, Jeff Gore⁵, B. Rogers Leonard⁶, Michael T. McCarty⁷, Lane Crooks⁷, Scott Baker⁸, Mark Rinehardt⁸ and Walt Mullins⁸, (1)The University of Tennessee, Jackson, TN, (2)University of Arkansas Cooperative Extension Service, Lonoke, AR, (3)Mississippi State University, Mississippi State, MS, (4)Clemson University, Blackville, SC, (5)Mississippi State University, DREC, Stoneville, MS, (6)LSU AgCenter, Macon Ridge Station, Winnsboro, LA, (7)Carolina Ag Research Service, Inc., Elko, SC, (8)Bayer CropScience, Research Triangle Park, NC