1. Nematology Dep.; Univ. of California; Riverside CA 92521
2. Botany and Plant Sciences Dep.; Univ. of California; Riverside CA 92521
3. The work was funded in part by Bean/Cowpea Collaborative Research Support Program, USAID Grant no. GDG-G-00-02-00012-00. The opinions and recommendations herein are those of the authors and not necessarily those of USAID