Affiliation: | 1. Organic Research Centre, Elm Farm, Hamstead Marshall, Newbury, UK;2. Faculty of Agriculture and Horticulture, Humboldt University Berlin, Berlin, Germany;3. Forest Pathology and Dendrology, Institute of Integrative Biology, ETHZ, Zurich, Switzerland;4. Department of Animal Science, Aarhus University, Tjele, Denmark;5. Ecological Plant Protection Group, Faculty of Organic Agricultural Sciences, University of Kassel, Witzenhausen, Germany |