1. Faculty of Agricultural and Environmental Sciences, Crop Health; University of Rostock; Rostock Germany
2. Institute of Life Sciences; Scuola Superiore Sant'Anna; Pisa Italy
3. Institute National de la Recherche Agronomique (INRA); Agroécologie; Dijon France
4. Department of Agroecology; Rothamsted Research; Harpenden Hertfordshire UK