1. Dep. of Plant PathologyUniv. of GeorgiaAthensGA30602‐7274
2. Dep. of Crop ScienceUniv. of GuelphGuelphCanadaN1G2W1
3. Dep. of Crop and Soil SciencesUniv. of GeorgiaGA 30602‐7272
4. USDA‐ARS, Soybean and Alfalfa Research Lab.Bldg. 011, HH‐19, BARC‐WESTBeltsvilleMD20705‐2350