1. International Institute of Tropical Agriculture, IITA-Benin, 08 BP 0932 Tri Postal, Cotonou, Republic of Benin
2. Crop Protection and Environmental Biology, Faculty of Agriculture, University of Ibadan, P.O. Box 22133, Ibadan, Oyo State Nigeria
3. Department of Crop and Soil Sciences, Faculty of Agriculture, Botswana University of Agriculture,
Private Bag 0027, Gaborone, Botswana
4. Laboratoire d’Entomologie Agricole (LEAg), Faculty of Agronomic Science, University of Abomey-Calavi, Abomey-Calavi, Cotonou, B.P. 526, Benin Republic