Bachelor of Science in Agriculture, University Nairobi, Kenya, 1983. Master of Science in Agronomy, University Nairobi, Kenya, 1987. Doctor of Philosophy, University London, 1995.
Agricultural officer II Ministry Agriculture, Kisii, Kenya, 1983-1985, agricultural officer I Nairobi, 1987-1990. Assistant lecturer Jomo Kenyatta University of Agriculture and Technology, 1991-1992. Lecturer Maseno (Kenya) University, 1992-1997, senior lecturer, since 1997, coordinator research science, since 1999.
Member of New York Academy of Sciences, Horticultural Association Kenya, Crop Science Society Kenya, Agricultural Society Kenya, International Crop Sciences Society, Kenya Professional Association of Women in Agriculture and Environment.