1. Dep. of Plant Pathology, Physiology and Weed Science; Virginia Polytechnic Institute and State Univ.; Blacksburg VA 24061
2. Dep. of Crop Science; North Carolina State Univ.; Raleigh NC 27695
3. Dep. of Horticulture; Virginia Polytechnic Institute and State Univ.; Blacksburg VA 24061
4. Advanced Plant Technology; Clemson Pee Dee Research and Education Center; Florence SC 29506
5. Tidewater Agricultural Research and Extension Center; Suffolk VA 23437