1. Department of Entomology, Plant Pathology and Nematology, University of Idaho, 875 Perimeter Drive, MS2329, Moscow, Idaho 83844
2. Department of Statistics, University of Idaho, PO Box 441104, Moscow, Idaho 83844
3. Department of Entomology, Plant Pathology and Nematology, University of Idaho, Southwest Idaho Research and Extension Center, 29603 U of I Lane, Parma, Idaho 83660