1. Plant Health Department, Icipe—International Centre of Insect Physiology and Ecology Nairobi Kenya
2. CIRAD, UPR Hortsys Université de Montpellier Montpellier, France
3. IITA-Cameroon, BP. 2008 (Messa); Yaoundé Cameroon
4. Jomo Kenyatta University of Agriculture and Technology Nairobi Kenya