1. University of Missouri Extension-Daviess County, 102 N. Main Street, Gallatin, MO 64640, USA
2. Olathe Horticulture Research and Extension Center, Kansas State University, 35230 W. 135th Street, Olathe, KS 66061, USA
3. Department of Plant Pathology, Kansas State University, 1712 Claflin Road, 4603 Throckmorton Plant Science Center, Manhattan, KS 66506, USA
4. Department of Horticulture & Natural Resources, Kansas State University, 1712 Claflin Road, 3608 Throckmorton Plant Science Center, Manhattan, KS 66506, USA
5. Texas A&M AgriLife Research and Extension Center, 17360 Coit Road, Dallas, TX 75252, USA