1. Univ. of Arkansas Div. of Agric.Rice Res. and Ext. Ctr. 2900 Hwy 130 E. Stuttgart AR 72160
2. Univ. of Arkansas Div. of Agric.Dep. of Plant Pathology PTSC 217 Fayetteville AR 72701
3. Univ. of Arkansas Div. of Agric.Dep. of Crops Soils and Environmental Sciences PS 115 Fayetteville AR 72701