Since 2011, the WTFRC has conducted studies in apple and cherry to generate pesticide residue data for commonly used insecticides and fungicides to help Washington growers make more informed choices about their spray programs. The WTFRC Internal Program recently completed its 2019 study in apple which included 10 insecticides/acaricides and 5 fungicides in two distinct application scenarios in a modern high-density ‘Gala’ orchard. The results of that study are available below, as well as similar reports from previous years on apple and cherry.
2019_Apple_Residue_Report.pdf 2019 WTFRC Cherry Residue Study
2018 Apple Residue Study 2018 WTFRC Cherry Residue Study
2012 - 2017 Apple Residue Summary 2012 - 2017 Cherry Residue Summary
2017 WTFRC Apple Residue Study 2017 WTFRC Cherry Residue Study
2016 WTFRC Apple Residue Study 2016 WTFRC Cherry Residue Study
2015 WTFRC Apple Residue Study 2015 WTFRC Cherry Residue Study
2011-2014 WTFRC Apple Residue Summary 2012-2014 WTFRC Cherry Residue Summary
2014 WTFRC Apple Residue Study 2014 WTFRC Cherry Residue Study
2013 WTFRC Apple Residue Study 2013 WTFRC Cherry Residue Study
2012 WTFRC Apple Residue Study 2012 WTFRC Cherry Residue Study
2011 WTFRC Apple Residue Study 2011 WTFRC Cherry Residue Study
2011 Univ. California Extension Cherry Residue Study
At a glance:
- Fungicide treatment (preharvest or pre-storage recommended)
- Refrigerated air: 33 F for a minimum of four months
- Controlled atmosphere: 33 F for ten months at 1% carbon dioxide, 2% oxygen (with or without 1-MCP)
To read the full article go to:
Ines Hanrahan and Marcella Galeni of the WA Tree Fruit Research Commission (WTFRC) recently published an article in "Fruit Matters" highlighting the development of a starch scale for WA38 production. Below are links to the story and to download the guide for use.
2020 Research Review Calendar
NW Cherry Research Review
When: November 12, 2019, 8:00a.m. - 6:00p.m.
Where: Confluence Technology Center, Wenatchee
The latest edition of "Fruit Matters", is now available. This monthly newsletter is a product of the Tree Fruit Extension team which is comprised of members from WSU and the Washington Tree Fruit Research Commission whose goal is to share timely information with the tree fruit community.