Red Valerian mildew

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  • December 1, 2021 at 5:51 pm #32266
    markwilson

      Could this be Golovinomyces valerianae (Erysiphe valerianae) on Red Valerian – it is the only mildew I can find on this plant in the literature from West Somerset July 2021- Thanks Mark

      December 4, 2021 at 9:15 am #44574
      gary
      Participant

        Hi Mark,

        I don’t know but I would recommend the mildew /rusts and smuts books free to download here

        https://www.aber.ac.uk/waxcap/links/index.shtml

        cheers

        Gary

        December 5, 2021 at 8:52 am #44575
        markwilson

          Thanks G valerianae is the only one listed

          Mark

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