Affiliation: | Laboratory of Entomology, Department of Plant Sciences, Wageningen University, PO Box 8031, 6700 EH Wageningen, the Netherlands;;Biometris, Mathematical and Statistical Methods, Wageningen University, PO Box 100, 6700 AC Wageningen, the Netherlands;;and Department of Multitrophic interactions, Netherlands Institute of Ecology, PO Box 40, 6666 ZG Heteren, the Netherlands |