1. Entomology Unit, FAO/IAEA Agriculture and Biotechnology Laboratory, Agency's Laboratories, A-2444 Seibersdorf, Austria
2. Department of Pests and Plant Protection, National Research Centre, Dokki, Giza, Egypt
3. Laboratoire de Pathologie Comparée, Université Montpellier II, Montpellier, France
4. Agricultural Service Center Palatinate (DLR Rheinpfalz), Breitenweg 71, 67435 Neustadt a/d Weinstrasse, Germany
5. 10 Lockhart Close, Kenilworth, Warwickshire CV8 1RB, United Kingdom
6. Laboratory of Virology, Wageningen University, Binnenhaven 11, 6709 PD Wageningen, The Netherlands