1. United States Department of Agriculture, USDA-APHIS-PPQ-PHP-RIPPS, Molecular Diagnostics Laboratory (MDL), Building 580, BARC-E, Powder Mill Road, Beltsville, Maryland 20705
2. Mountain Horticultural Crops Research and Extension Center (MHCREC), Department of Plant Pathology, North Carolina State University, 455 Research Drive, Mills River, North Carolina 28759
3. Department of Plant Pathology, North Carolina State University, Campus Box 7903, Raleigh, North Carolina 27695
4. United States Department of Agriculture, USDA-APHIS-PPQ-PHP-PSPI, Plant Germplasm Quarantine Program (PGQP), Building 580, BARC-E, Powder Mill Road, Beltsville, Maryland 20705