William Jokela, USDA-ARS, Marshfield, WI, Peter Kleinman, USDA-ARS, University Park, PA, Shabtai Bittman, Agriculture and Agri-Food Canada, Agassiz, BC, CANADA, Bonnie R. Ball, Ontario Ministry of Agriculture, Food and Rural Affairs, Stratford, ON, Canada and John Meisinger, BARC-East - 10300 Baltimore Ave, USDA-ARS, Beltsville, MD