1. School of the Environment Yale University New Haven CT 06511 USA
2. Department of Ecology and Evolutionary Biology Yale University New Haven CT 06511 USA
3. Department of Biology Bates College Lewiston ME 04240 USA
4. Faculty of Land and Food Systems University of British Columbia Vancouver BC V6T 1Z4 Canada
5. Department of Viticulture and Enology University of California Davis, Davis CA 95616 USA
6. US Department of Agriculture – Agricultural Research Service Crops Pathology and Genetics Research Unit Davis CA 95618 USA