Hollyhock Puccinia malvacearum rust

Discussion in 'HortForum' started by Durgan, Jun 26, 2006.

  1. Durgan

    Durgan Contributor 10 Years

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    Location:
    Brantford,Ontario, Canada
    Hollyhocks are starting to bloom and rust has reared its ugly head. I have been treating with sulfur, and appear to be holding my own. Last year I almost erradicated the rust (Puccinia malvacearum), but it takes constant vigilance, with various degrees of success.


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