2004 Annual Report 4.What were the most significant accomplishments this past year? D. Progress Report: This report serves to document research conducted under a non-funded cooperative agreement between ARS and Washington State University (WSU). Additional details of this research can be found in the report for the parent project 1931-21440-003-00D, Harvest Automation/Mechanization for Tree Fruits and Automated Sorting Systems for Apples. The experimental mechanical harvester was refurbished and delivered to Washington for testing. A cooperating WSU horticulturist is developing tree-training systems that are compatible with the machine harvester. Field tests to determine harvesting efficiency and capacity were conducted in June 2004 and results are being analyzed. Data will be used to help determine harvester economics.