Since 2011, the WTFRC has conducted studies in apple and cherry to generate residue data for commonly used pesticides to help Washington growers make more informed choices about their spray programs for concerns about Maximum Residue Levels (MRLs) in export markets. The WTFRC Internal Program recently completed its 2024 study in apples which included 12 insecticides, 6 fungicides, and 3 miticides in two distinct application scenarios in a modern high-density ‘Gala’ orchard. The report from that study and a newly updated summary report of all WTFRC apple residue studies (2011-2024), as well as previous summaries and annual reports from similar projects on apple and cherry, are all now available on the WTFRC homepage: www.treefruitresearch.org
