1. US Department of Agriculture Forest Service, Northern Research Station, Morgantown, WV
2. Scion/New Zealand Forest Research Institute, Christchurch, New Zealand
3. US Department of Agriculture–Animal and Plant Health Inspection Service, Raleigh, NC
4. Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR
5. US Department of Agriculture Forest Service, Forest Management Science, Arlington, VA