Since 2011, the Washington Tree Fruit Research Commission 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.
The Washington Tree Fruit Research Commission( WTFRC) Internal Program recently completed its 2021 study in apple which included 11 insecticides/acaricides, 8 fungicides, and 1 plant growth regulator in two distinct application scenarios in a modern high-density ‘Gala’ orchard. Additionally, there is a new report available which summarizes pesticide residues detected across 11 years of WTFRC apple studies.
That summary report, the detailed report for the 2021 study, and previous reports from similar projects on apple and cherry are all now available on the WTFRC homepage: https://treefruitresearch.org/pesticide-residue-studies/
– Tory Schmidt, Project Manager, Washington Tree Fruit Research Commission
