For the eighth consecutive year, the Washington Tree Fruit Research Commission has conducted studies to provide the Northwest cherry industry basic information about residues of commonly used pesticides. These studies are intended to help growers and consultants make more informed pest management decisions with respect to concerns about Maximum Residue Levels (MRLs) in foreign markets. The 2018 report includes results for 15 commonly used active ingredients found in 10 insecticides/acaricides, 3 fungicides, and a potash & phosphite foliar fertilizer, as well as the effects of spraying dilute (400 gal water/acre) vs. concentrate (200 gal water/acre) and helicopter applications of malathion. The results of that study and similar reports from previous years on apple and cherry are now available on the WTFRC homepage: www.treefruitresearch.com
Contact
Tory Schmidt
Project Manager
Washington State Tree Fruit Research Commission
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