1. USDA-ARS; Southeast Watershed Research Laboratory; Box 748 Tifton GA 31793
2. USDA-ARS; Crop Protection and Management Research Unit; Box 748 Tifton GA 31793
3. USDA-ARS; J. Phil Campbell, Sr., Natural Resource Conservation Center; Watkinsville GA
4. Dep. Crop and Soil Science; University of Georgia, Coastal Plain Experiment Station; Tifton GA