1. Laboratory of Entomology Wageningen University and Research Droevendaalsesteeg 1 6708 PB Wageningen The Netherlands
2. Laboratory of Virology Wageningen University and Research Droevendaalsesteeg 1 6708 PB Wageningen The Netherlands
3. Department of Bioagricultural Sciences & Pest Management Colorado State University Fort Collins CO 80523‐1177 USA
4. Department of Terrestrial Ecology Netherlands Institute of Ecology Droevendaalsesteeg 10 6708 PB Wageningen The Netherlands
5. Department of Ecological Sciences ‐ Animal Ecology VU University Amsterdam De Boelelaan 1085 1081 HV Amsterdam The Netherlands