1. Dep. of Agronomy and HorticultureUniv. of NebraskaLincolnNE68583
2. USDA‐ARSE‐202 Food Quality Bldg.PullmanWA99164
3. USDA‐ARS and Dep. of Agronomy and HorticultureUniv. of NebraskaLincolnNE68583
4. Torrington Res. And Ext. CenterUniversity of WyomingTorringtonWY88240
5. USDA‐ARS and Dep. of Plant PathologyUniv. of MinnesotaSt. PaulMN55108
6. Dep. of Plant PathologyUniv. of NebraskaLincolnNE68583
7. USDA‐ARS and Dep. of EntomologyKansas State Univ.ManhattanKS66506
8. USDA‐ARS‐PSERU and Dep. of AgronomyKansas State Univ.ManhattanKS66506