1. USDA-ARS Horticultural Crops Research Laboratory, Corvallis, OR, 97330;
2. Oregon State University, Department of Botany and Plant Pathology, Corvallis, 97331;
3. University of Idaho, Parma, 83660;
4. AGNEMA, The Phytopathology Lab, Richland, WA, 99354; and
5. Ever-Green Nematode Testing Labs, Inc., Phoenix, AZ, 85086