Phytophthora acerina Ginetti, T. Jung, D.E.L. Cooke & Moricca (2014)


California Pest Rating Proposal for

Phytophthora acerina Ginetti, T. Jung, D.E.L. Cooke & Moricca (2014)
Pest Rating: B



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Posted by tn

2 thoughts on “Phytophthora acerina Ginetti, T. Jung, D.E.L. Cooke & Moricca (2014)”

  1. December 16, 2022
    From: The California Oak Mortality Task Force and Phytophthoras in Native Habitats Work Group, California Forest Pest Council
    To: Heather Scheck, California Department of Food and Agriculture
    Regarding: California Pest Rating for Phytophthora acerina: Proposed Pest Rating: B
    We appreciate this opportunity to comment on the proposed California pest rating of Phytophthora acerina. Our comments represent the views of The California Oak Mortality Task Force,
    (www.suddenoakdeath.org) and The Phytophthoras in Native Habitats Work Group
    (www.calphytos.org) parts of the California Forest Pest Council (www.caforestpestcouncil.org). These groups endeavor to sustain California plant health and protect against pathogen introductions and spread.
    For P. acerina, the California Department of Food and Agriculture (CDFA) is proposing a pest rating of B: “An organism of known economic importance subject to: eradication, containment, control or other holding action at the discretion of the individual county agricultural commissioner. Or, an organism of known economic importance subject to state endorsed holding action and eradication only when found in a nursery.”
    We support the proposed rating because plant health in California wildlands, forests, horticultural, and agricultural settings would benefit from regulatory protection from P. acerina. California is home to an incredible diversity of plants and production systems. Farms, restoration areas, and landscapes must thrive alongside a population of approximately 40 million people. This B rating would position California to take action to limit pathogen spread if a new problematic find is detected.
    If you have questions or need anything more from us, please contact Janice Alexander, Co-chairperson, Phytophthoras in Native Habitats Work Group, jalexander@ucanr.edu.
    Christopher Lee
    Chairperson, California Oak Mortality Task Force

  2. December 1, 2022
    To: Heather Scheck

    From: Elizabeth Bernhardt, Ph. D., Tedmund Swiecki, Ph.D.

    Re: California Pest Rating Proposal for Phytophthora acerina Ginetti, T. Jung, D.E.L. Cooke & Moricca (2014), Comment Period: 11/08/2022 through 12/23/2022

    We agree a ‘B’ rating is justified for P. acerina. We have detected this pathogen only once in our work, by pear baiting a water sample collected from a small channel flowing out of an Ailanthus/Acacia grove at the base of Kirby Canyon, Santa Clara County. There is a mostly failed restoration planting upstream on one side of the canyon. The CDFA sequence number for that sample is 8406.

    Response: Thank you Drs. Bernhardt and Swiecki for the comments and information

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