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2018 WTFRC Apple Pesticide Residue Report

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Written by Tory Schmidt, WTFRC, Nov 1 2018

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 2018 study in apple which included 7 insecticides/acaricides, 4 fungicides, and one plant growth regulator, as well as considering the effects of spraying concentrate (100 gal water/acre) vs. dilute (200 gal water/acre) in a modern high density orchard. The results of that study, as well as previous reports from similar projects on apple and cherry are now available on the WTFRC homepage:


Contact Information

Tory Schmidt, 
Project Manager
Washington Tree Fruit Research Commission
1719 Springwater Ave.
Wenatchee, WA  98801  USA
Office: (509) 665-8271 x4

Washington State University