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Sunken spots on leafs - ?

This is a discussion on Sunken spots on leafs - ? within the Phalaenopsis ('moth orchid') Information forums, part of the Frequently Asked Questions category; Today I repotted my new mini- Phal and saw a net of dry sunken spots ...

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    Red face Sunken spots on leafs - ?

    Today I repotted my new mini-Phal and saw a net of dry sunken spots under one of them. There is nothing on top surface of a leaf, but underneath spots look kind of silverish. - I didn't notice it at the store couple of days ago. Does anybody know what is this and how to treat it? ...Is it treatable? Is plant going to be okay?
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    Take a white tissue or paper towel and wipe the bottom of the leaf with it. If you get a redish or pinkish color on the tissue, you have spider mites sucking juice from your orchid leaf.

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    Cindy, I just done what you said - there is nothing left on tissue paper, leaf is clean... . These spots are sort of "thinned out" body of the leaf, it is clear on the picture.
    Any other ideas?...

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    Cell collapse before you got the orchid, perhaps? As long as it doesn't get worse, I would treat with both an insecticide and fungicide to be safe.

    Cheers,
    BD

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    Yes, Bruce, leaf was like this before I got the plant. What exactly would you recommend to treat it with and how - sprey on leaf only or add sistemic chemicals to water?
    I'll watch it and let you know if this sunken spots will spread further on a leaf.

    Does anybody know for sure what this is? ...Just trying to figure out what to do to avoid this from happening in a future.

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    yes, just spray on the plants leaves top and bottom -- that way if there is a bug, you have taken the appropriate steps to stop it from doing more damage. And if not, nothing really lost.

    I think if it is not spider mites then it must be cell collapse.

    cheers,
    BD

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