1. Illinois Natural History Survey, Prairie Research Institute, University of Illinois, Champaign, IL, USA
2. Department of Crop Sciences, University of Illinois, Champaign-Urbana, IL, USA
3. Current Affiliation: Corteva Agriscience, Ivesdale, IL, USA
4. Department of Geography, University of Illinois, Champaign-Urbana, IL, USA
5. Department of Plant Pathology and Environmental Microbiology, Penn State University, 205 Buckhout Laboratory, University Park, PA, USA
6. Department of Meteorology and Atmospheric Sciences, Penn State University, 205 Buckhout Laboratory, University Park, PA, USA