1. Dep. of Plant Pathology, Plant Science 217; Univ. of Arkansas; Fayetteville AR 72701
2. Texas A&M AgriLife Extension Service; 1102 East FM 1294 Lubbock TX 79403
3. Dep. of Plant Pathology, 104 Research Way; Univ. of Georgia, Coastal Plain Experiment Station; Tifton GA 31793