1. Food and Environment Research Agency; Sand Hutton; York; YO41 1LZ; UK
2. Kenya Agricultural Research Institute; Nairobi; PO Box 14733-00800; Kenya
3. Kenya Plant Health Inspectorate Service; PO Box 49592-00100; Nairobi; Kenya
4. CAB International Africa Regional Centre; PO Box 633-00621; Nairobi; Kenya
5. CAB International; Egham; TY20 9TY; UK