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Phalaenopsis Problem

This is a discussion on Phalaenopsis Problem within the New Growers: Ask the Senior Members forums, part of the New Growers category; Hi! I have 3 phalaenopsis plants. I've been growing Phals for years and now I ...

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  1. #1
    dukejenn's Avatar
    dukejenn is offline Senior Member
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    Jennevie Shih
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    Default Phalaenopsis Problem

    Hi! I have 3 phalaenopsis plants. I've been growing Phals for years and now I only have three plants left and they are not blooming. And I found out that the under side of the lower leaves of the plant usually will have whitish or brownish dots. I referred to some orchid books but still not quite sure what are they and what I can do to save my plants and make them happy and healthy again.

  2. #2
    gabi_borza's Avatar
    gabi_borza is offline Senior Member
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    Borza Gabriel Mircea
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    Default

    You probably have a spider mite infestation. Look really close, or use a magnifying glass to be sure. If you can, post a picture of the leaves

  3. #3
    remo is offline Senior Member
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    Dear Jenn, sounds like spider mites to me, too. Try taking a white tissue and wiping the underside of the leaves. If you see a rust like residue of little brown spots, voila! you have spider mites. Increase the humidity if possible and use a commercial miticide/insecticide and keep an eye on it. I'm sure your phals will be fine. Good luck!
    Remo

  4. #4
    Brutal_Dreamer's Avatar
    Brutal_Dreamer is offline Dreaming with my eyes open...
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    Just wanted to add that you should retreat your plants once every 7 - 10 days (probably 3 or 4 times) to be sure to get rid of those pesky mites. They hatch out about once a week or so and multiply fairly quickly.

    Good luck, Jenn!!

    Cheers,
    BD

  5. #5
    dukejenn's Avatar
    dukejenn is offline Senior Member
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    Thanks for the advise everyone! I hope I can really save these plants! Just found out that this already spread to my dendrobiums collection! coz one of my dendrobium got same problem, the underleaf got same thing but more brown parts, and also the pseudobulbs and backbulbs of my other dendrobiums got lots of black spots...so worried....

    I'm recalling now...I think all of my phalaenopsis died due to this same problem...coz I never used insecticide for all of my orchids.

  6. #6
    dukejenn's Avatar
    dukejenn is offline Senior Member
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    Hi all! I would like to update you reg my phals that you all helped me saved. It's now in bloom!!! thank you! But I can't figure out how to post the pic using my cp here hehe

  7. #7
    MeDeL's Avatar
    MeDeL is offline Member
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    wow. I would like to see the photo

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