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Phal leaf damage

This is a discussion on Phal leaf damage within the Phalaenopsis, Oncidium, & Intergenerics IN BLOOM forums, part of the Orchid Photography category; Hi Svetlana, yes - before I realized what it was I suspected it was some ...

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  1. #11
    T4tlrman's Avatar
    T4tlrman is offline My name is Terry and I'm an addict ~
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    Hi Svetlana, yes - before I realized what it was I suspected it was some kind of leaf miner. I didn't know there was actually such a thing as a leaf miner.
    Thrips could easily be mistaken for gnats. Keep a close eye on your potting media - if you've got any they can multiply quickly.
    I've never used neem oil but from what I've heard it's good to have on hand. Let me know what it looks like under the microscope, T

    Name:  Svetlanas picture - Copy.jpg
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  2. #12
    Chris in Hamilton's Avatar
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    Svetlana, Tried, but will have to get back to that later. What I get is even more blobby that the original.

  3. #13
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    chemist is offline Senior Member
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    Quote Originally Posted by T4tlrman View Post
    Hi Svetlana, yes - before I realized what it was I suspected it was some kind of leaf miner. I didn't know there was actually such a thing as a leaf miner.
    Thrips could easily be mistaken for gnats. Keep a close eye on your potting media - if you've got any they can multiply quickly.
    I've never used neem oil but from what I've heard it's good to have on hand. Let me know what it looks like under the microscope, T

    Name:  Svetlanas picture - Copy.jpg
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    Hi Terry,
    The circled scratch on the left definitely was caused by me in search of any insects ... The right circle - im not sure what it is by now but its not location where I saw sap.

    Update from entomologist: its not caused by insects (there are no entering/exiting wholes, and if it would be caused by insects the tunnel would not disappear after treating with alcohol or anything else), and its neither fungus or bacteria !!! I relived little bit but still puzzled what it is.
    Name:  IMG_20140822_7am 1.jpg
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    Scared after web researching I decided to add neem oil, liquid dishwasher soap and maybe even few drops of physan. I know if the plant will recover it will be hard to tell now what helped to it. But I just could not let it dye so fast as if it would be fungus bacteria or something else. A week ago I lost my first (in terms first died on me) phal due to some sort of rot. So this time I determined not to loose this one.

    You can see that those spots where I spotted sap disappeared

  4. #14
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    Chemist- Your problem definitely resembles thrip damage but could also be scale or mites. Look for what looks like small shells on the underside of your leaves for scale and webbing for mites. Cleaning them off with warm soapy water usually works but your case looks a bit more severe.

    Terry-looks more like leaf cracking which can sometimes be caused by having at one point been malnourished. It usually doesn't cause any major damage unless the plant remains neglected for longer. It is cosmetic damage but new growth would be unaffected.

  5. #15
    joanaem is offline Junior Member
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    Omg! Just found this topic after so much search! Found some look a like pictures and no satisfactory answer so far!
    Leaf miner!!

    "When i First got this phal it had two flower spikes and beautiful leaves. I noticed some strange markings on one leaf. Neem oil did not help, it does not seems to be infected, already repotted with fresh new medium. Cut out the two leaf markings and it was that.. seemed ok.
    Now I noticed in another leaf the same geographic pattern as before, then it dries out and the tip seems burnt or bitten.
    Just have this problem on this particular phal, but my collection ir rather small."
    Will try to post pics

    Thank you very much! Will try alcohol or any other insecticides!
    Thanks a LOT!!
    Posted via Mobile Device

    ---------- Post Merged at 07:23 PM ----------

    Link to the pics
    https://goo.gl/photos/8XszqbfEaAnG6tQ49

  6. #16
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    Joana, can you post a larger picture so we can have a better look at that?

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    They all look like some sort of physical damage maybe during shipping or just moving them around. Or maybe a critter is chewing on them. Do you have a cat?

  9. #19
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    I agree with Karin, looks more like mechanical damage.
    I have few phals in pots with metal hangers so at some point wire was scratching underneath of the leaf while i was carrying it to water. I had to band wire the other way. But single line scratch looked exactly as on your pic. Sorry no pics from that time.

  10. #20
    Chris in Hamilton's Avatar
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    I have to agree with Karin as well. Could someone have knocked off a table and kept mum?

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