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ARS Home » Pacific West Area » Wapato, Washington » Temperate Tree Fruit and Vegetable Research » Research » Publications at this Location » Publication #403691
Research Project: Integrated Approach to Manage the Pest Complex on Temperate Tree Fruits

Location: Temperate Tree Fruit and Vegetable Research

Title: Control of brown mites in apple with miticides, 2021

Author
item HANEL, ALDO - Washington State University
item Moretti, Erica
item Schmidt, Rebecca

Submitted to: Arthropod Management Tests
Publication Type: Trade Journal
Publication Acceptance Date: 8/17/2023
Publication Date: 9/2/2023
Citation: Hanel, A., Moretti, E.A., Schmidt-Jeffris, R.A. 2023. Control of brown mites in apple with miticides, 2021. Arthropod Management Tests. 48(1)2023;tsad110. https://doi.org/10.1093/amt/tsad110.
DOI: https://doi.org/10.1093/amt/tsad110

Interpretive Summary: Brown mites are becoming a more common pest problem in Washington apples. There is currently little information on which pesticides are the most effective for its control. Researchers at the USDA-ARS laboratory in Wapato, WA and Washington State University tested nine pesticides for brown mite control in 2021. Acramite and Onager had consistently the lowest mite counts. Agri-mek, Apollo, Zeal, Vendex, and Nealta were not effective at any time point.

Technical Abstract: Brown mite (Bryobia rubrioculus Scheuten) control using foliar miticide treatments was evaluated on a research orchard outside of Moxee, WA in 2021. Miticides were tested as single tree treatments, with five replicates per treatment. Mites were monitored by collecting a 100-leaf brush count sample from each tree at 3, 6, 13, and 20 days after treatment. Differences between treatments were first observed at 3 days after treatment. The miticides exhibiting the best quick knockdown of brown mite were Acramite and Onager and these miticides had the longest effective residues. Agri-mek, Apollo, Zeal, Vendex, and Nealta almost never differed from the check, indicating that these miticides were not effective for brown mite management.