1. USDA-ARS; ERRC; 600 E Mermaid lane Wyndmoor PA 19038-8598
2. USDA-ARS; 2413 E. Hwy 83 Weslaco TX 78596 USA
3. USDA-ARS; SPARC; 2881 F&B Road College Station TX 77845
4. Texas A&M University-Kingsville; Citrus Center; 312 North International Blvd Weslaco TX 78596
5. U. S. Horticultural Research Laboratory; 2001 South Rock Road Fort Pierce FL 34945
6. Subtropical Horticultural Research Station; 13601 Old Coulter Road Miami FL 33158