1. Finnish Food Authority Mustialankatu 3 Helsinki FI‐00790 Finland
2. Department of Ecology SLU Risk Assessment of Plant Pests Swedish University of Agricultural Sciences P.O. Box 7044 Uppsala S‐750 07 Sweden
3. Department of Forest Mycology and Plant Pathology SLU Risk Assessment of Plant Pests Swedish University of Agricultural Sciences P.O. Box 7026 Uppsala S‐750 07 Sweden
4. The Norwegian Scientific Committee for Food and Environment P.O. Box 222 Skøyen Oslo 0213 Norway