1. Dep. of Entomology and Plant Pathology North Carolina State Univ. Varsity Research Building Module 6, 1575 Varsity Dr. Raleigh NC 27606 USA
2. Dep. of Crop and Soil Science North Carolina State Univ. Williams Hall, 101 Derieux Pl. Raleigh NC 27695 USA
3. Dep. of Horticultural Science Univ. of Minnesota 1970 Folwell Ave., 454 Alderman Hall St. Paul MN 55108 USA