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Help! Sick Cymbidium!

This is a discussion on Help! Sick Cymbidium! within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; It starts by turning yellow in the center of the stalks. Closer view, it then ...

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  1. #1
    Toni1968's Avatar
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    Unhappy Help! Sick Cymbidium!

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    It starts by turning yellow in the center of the stalks.

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    Closer view, it then turns black.

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    It you touch the stalks they come off in your hands.
    Has a slight odor; not offensive, just kinda decomposed I guess.
    I don't seem to do well with these; this is my third one. The first two died out; I read they hibernate so I wasn't too worried, but they hibernated for over a year so I assume they died.
    This one died off and then this spring I started seeing new growth, and now this.
    Please help! I will try anything!

  2. #2
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    Seems like a crown rot of some kind, Toni. Best to not water where it can get into the space between the leaves. Also, try adding a fan that will dry-off any water that gets on the leaves fairly quickly. Good luck!

    Cheers,
    BD

  3. #3
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    Thats not crown rot, that is a very volitile fungus that attacked 30 of my good cymbidiums. I cant remember the name, but if it smells sort of putrid, thats the one. It starts with a b i think. There is a fungicide available, but the problem is, the fungus thrives on it! :o I used copper, full strength once a week for a month. That worked, but it did come back again, so i think it was in the soil the plants pots were on. One way to determine, is if you cut a pbulb off at the rhizome. If there are little black dots in the rhizome, BOBS YOUR UNCLE!

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    Hi, Toni...I think your cym is dying from a simple case of root rot due to the potting material. It looks like basic potting soil (read-dirt) which is slow death to any orchid. Typically the soil will hold way too much water which doesn't allow the roots to breath. A fungus sets in and travels up thru the bulb to the crown and that is what you see as 'crown rot'. While it is true that various other fungus and virus will set in on a weak plant I think that is the main problem. Occasionally any cym will get a bit of brown leaf tip from hard water or build up of salts in the pot, etc and also a yellow leaf occasionally on an older aging pbulb is normal. Please pull the whole thing out of the pot and examine the roots...always start with the roots, in my opinion. As I said, it looks like you have it potted in potting soil, if that is true and it is not too far gone you might be able to save it. Pull it out, and give us a pictorial play by play of the process of un-potting, cleaning the gunk of of the roots, what they look like after rinsing, etc. We'll get a much better idea of what is going on that way.
    Best to you-Remo

  5. #5
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    Toni, how's the cymbidium?

  6. #6
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    Default pictures of unpotting and roots

    Quote Originally Posted by remo View Post
    Hi, Toni...I think your cym is dying from a simple case of root rot due to the potting material. It looks like basic potting soil (read-dirt) which is slow death to any orchid. Typically the soil will hold way too much water which doesn't allow the roots to breath. A fungus sets in and travels up thru the bulb to the crown and that is what you see as 'crown rot'. While it is true that various other fungus and virus will set in on a weak plant I think that is the main problem. Occasionally any cym will get a bit of brown leaf tip from hard water or build up of salts in the pot, etc and also a yellow leaf occasionally on an older aging pbulb is normal. Please pull the whole thing out of the pot and examine the roots...always start with the roots, in my opinion. As I said, it looks like you have it potted in potting soil, if that is true and it is not too far gone you might be able to save it. Pull it out, and give us a pictorial play by play of the process of un-potting, cleaning the gunk of of the roots, what they look like after rinsing, etc. We'll get a much better idea of what is going on that way.
    Best to you-Remo
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    It was regular soil surrounding very little bark... what do I do?

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    All root are brown. I have not done anything with it, is it savable, what steps should I take?
    I have fertilizer and rooting hormone. a potting mix of bark, moss, lava rock, and charcoal.

  7. #7
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    Thanks for your help everyone!

  8. #8
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    BOBS YOUR UNCLE!
    whos Bob? am I missing something?

  9. #9
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    Quote Originally Posted by panam View Post
    Toni, how's the cymbidium?
    I was gone for the week and came back to everyone replies. it still looked bad! Not sure what to do. I dont do well with Cymbidiums, and don;t know as much about them as my phals.

  10. #10
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    Quote Originally Posted by Toni1968 View Post
    whos Bob? am I missing something?
    Ha! Ha1 Toni, it's a Brit-speak version of "Voila!" or "There you have it!"

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