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paph leaf problem

This is a discussion on paph leaf problem within the General Orchid Culture forums, part of the Orchid Culture category; I think two things are going on here. The one on upper surface and the ...

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  1. #11
    Nobody is offline Junior Member
    Join Date
    Jul 2004


    I think two things are going on here. The one on upper surface and the lower surface are totally different. Yes, I have seen the on the lower surface, and do not know what it is. It is currently on my Paph. Makuli 'Green Mist' and Paph. Sumers Isles 'Laurie'. Both came from a NW nursery that had an inventry reduction last summer

    The one on the upper surface is the one causing the damage. If you look carefully, there is a brown fruiting body in the center. I would cut back, and put some cinnamon powder at the cut end. If the plant does not have decent roots, I would put it in a zipper bag.

  2. #12
    Aerides is offline Senior Member
    Join Date
    Jun 2004
    New York, NY


    I had this problem on a plainleaved paph - both upper and lower. I think the upper problem started first, but not sure. I tried cutting and doing the cinnamon thing, but the disease continued to progress.

    Someone on another forum told me that the only way he had found to get rid of it was to spray with Dithane M45, which is a systemic fungicide. I have made two applications and the problem was eradicated.

    I don't know how you feel about chemicals and such - I hate to use them myself, and usually don't have to. But this is an expensive plant so I was motivated.

    My opinion is that it's good to have a dependable systemic around - when you get disease, better not to fool around with solutions that only halfway work.



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