1. Dep. of Agronomy and Horticulture; Univ. of Nebraska-Lincoln; 161 Keim Hall Lincoln NE 68583
2. Dep. of Plant Science and Landscape Architecture; 1112 H.J. Patterson Hall, Univ. of Maryland; College Park MD 20742
3. Dep. of Entomology; Purdue Univ.; 901 West State St. West Lafayette IN 47907