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Phal leaf trouble, black and yellow

This is a discussion on Phal leaf trouble, black and yellow within the General Orchid Culture forums, part of the Orchid Culture category; ...

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  1. #1
    TheEnigmaOfLife is offline Junior Member
    Join Date
    May 2004

    Unhappy Phal leaf trouble, black and yellow

    I have a Phal and it is in bloom. It has a black dot on the underside of one of the leaves and yellow is surrounding that dot. Also, this black dot is about the size of a button on a collar shirt and can be seen clearly from the top of the leaf too. There is another leaf with several small black dots and yellow around them. This is also in the center of the leaf. I don't think it is sunburn since there’s black and yellow around. I'll take a picture of it later on today. I would like to know what to do; I sprayed the plant with and insecticide already. Any help would be appreciated.


  2. #2
    LJA's Avatar
    LJA is offline OrchidTalk Tech Admin
    Real Name
    Louis J. Aszod
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    Join Date
    Feb 2003
    Clarksville, Arkansas
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    Chris, it may have been sunburn at first, and a bacterial / fungal infection set in because of the damaged tissue. Try spraying with Physan or RD-40 (don't get any on the flowers!) or use Listerine to wipe the leaves down top and bottom then spray with Neem or another fungicide that's usable for ornamentals. (Paphraguy uses cinnamon as a fungicide; you might try that first if you don't like using poison.)

    And welcome to the boards!

  3. #3
    TheEnigmaOfLife is offline Junior Member
    Join Date
    May 2004


    How does he use the cinnamon like how does he apply it? Does it work?


  4. #4
    Paphraguy is offline Former User
    Join Date
    Apr 2004


    I usually just sprinkle lightly or lightly dab the area.

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