1. Department of Entomology; University of Wisconsin - Madison; Madison WI 53706 USA
2. Department of Entomology; Pennsylvania State University; State College PA 16802 USA
3. Department of Plant Pathology; The Ohio State University; Columbus OH 43210 USA
4. Department of Plant, Soil and Entomological Science; University of Idaho; Moscow ID 83844 USA
5. Department of Renewable Resources; University of Alberta; Edmonton Alberta T6G 2E3 Canada
6. Departments of Botany and Geography; University of Wisconsin - Madison; Madison WI 53706 USA
7. Warnell School of Forestry and Natural Resources; University of Georgia - Athens; Athens GA 30602 USA
8. Department of Forest and Wildlife Ecology; University of Wisconsin - Madison; Madison WI 53706 USA