1. 1Associate Professor, School of Economic Sciences, Puyallup Research and Extension Center, Center for Precision Agriculture and Automated Systems, Washington State University, 2606 W. Pioneer, Puyallup, WA 98371
2. 2Project Manager, Washington Tree Fruit Research Commission, 1719 Springwater Avenue, Wenatchee, WA 98801
3. 3PhD Student, School of Economic Sciences, Washington State University, P.O. Box 646210, Hulbert Hall, Pullman, WA 99164
4. 4Professor, Department of Horticultural Science, University of Minnesota, Twin Cities, 1970 Folwell Avenue, St. Paul, MN 55108