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POSTERS: Late Breaking II

P-688 - Oregon Clean Plant Center: supporting the berries industry in partnership with the OSU Plant Clinic

Tuesday, August 5, 2025
10:15 AM - 11:00 AM HST
Location: Exhibit Hall 3

    Presenting author(s)

  • MO

    Mana Ohkura, PhD (she/her/hers)

    Assistant Professor of Practice
    Oregon State University
    Corvallis, Oregon, United States

    • Author(s)

  • CO

    Cristian Olaya

    Research Associate at Oregon Clean Plant Center
    Oregon State University /Oregon Clean Plant Center
    Corvallis, Oregon, United States

  • AL

    Amanda Lake

    USDA ARS
    Corvallis, Oregon, United States

  • WM

    Walter F. Mahaffee, PhD

    Research Plant Pathologist
    USDA-ARS HCDPMRU
    Corvallis, Oregon, United States

Abstract Text: Pathogen-free germplasm is vital to economical and sustainable production since a single clean mother plant can be propagated to 15,000 and 20 million blackberry, raspberry, blueberry, or strawberry plants over a five-year period.  To ensure plants are free of pathogens, breeding material is tested and maintained by centers within the National Clean Plant Network (NCPN). One such center, the Oregon Clean Plant Center (OCPC) at USDA-ARS in Corvallis, OR, has supported the international berry industry by providing clean plants throughout the world for over 12 years. Recently, the OCPC began a restructuring initiative in collaboration with Oregon State University’s Plant Clinic to enhance and expand its testing capacity and ability to further serve the industry. The center serves commercial and public stakeholders by offering pathogen testing for approximately 35 viruses in Rubus, 22 in Vaccinium, and around 20 in Fragaria, as well as for Phytoplasma and Xylella fastidiosa, using PCR, qPCR, ELISA, and grafting techniques. OCPC maintains and distributes over 200 different genotypes, including 99 patented cultivars (79 Rubus, 15 Fragaria, and 5 Vaccinium), 101 advanced selections (56 Rubus, 12 Fragaria, and 33 Vaccinium), and a collection of more than 150 virus-positive control plants. As part of its mission, the center also applies therapeutic treatments to eliminate targeted pathogens and provides quarantine services for both domestic and imported cultivars.