1. Plant Health Theme, International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772, 00100 Nairobi, Kenya
2. Unit for Environmental Sciences and Management, North-West University, Private Bag X6001 Potchefstroom 2520, South Africa
3. International Institute of Tropical Agriculture (IITA), icipe Campus, P.O. Box 30772, 00100 Nairobi, Kenya
4. Nematology Research Unit, Department of Biology, Ghent University, K.L. Ledeganckstraat 35, B-9000 Ghent, Belgium
5. Division of Biotechnology and Plant Health, Norwegian Institute for Bioeconomy Research (NIBIO), P.O. Box 115, NO-1431 Ås, Norway