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My vanda leaves turning yellow

This is a discussion on My vanda leaves turning yellow within the New Growers: Ask the Senior Members forums, part of the New Growers category; Hi, I bought this vanda magic red and received it a month ago. When I ...

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  1. #1
    galeandra is offline Member
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    Default My vanda leaves turning yellow

    Hi,
    I bought this vanda magic red and received it a month ago. When I received it, two of the base leaves were turning yellow, but it was to be expected after the five days it took shipping. I also found black bugs on it, and as here there aren't any specific products in shops to treat orchids, I used an organic insecticide with cinnamon, and I think is bug free, but some days ago three of the base leaves began turning yellow and as they dropped, there are black spots on the stem, and even it has two new leaves on the top, another leaf is turning yellow, I don't know if it is a fungus or what, and what can I do to save it. Please, help me.

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  2. #2
    Yug's Avatar
    Yug
    Yug is offline Mostly-Species Snob
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    That baby is way to dry. The wrinkled leaves are a solid clue. Mist it (the roots) in the morning, and maybe again early afternoon.

  3. #3
    galeandra is offline Member
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    Thanks for your answer. I wet the roots three times a day, I don't do it more times because the roots are still green between those waterings.
    Posted via Mobile Device

  4. #4
    chemist's Avatar
    chemist is offline Senior Member
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    You know Yug, i have two vandas, they were bought same day from say store. I grow them inside under lights over winter. Both rebloomed (one still in bloom, other i had to cut spike). So since few month by now i noticed one of them was not doing great. Roots started to dry slowly, with watering two times a day, they are in plastic basket. Someone suggested to summer them outside to help. Butbi don't see any improvement! The one that was ok still fine with green growing tips but the troubled one still going downward. Leaves are drying up and no growing tips on roots. You can see on stem there are few bumps like new roots will grow, but month past snd they are in same condition.
    Do you think there is something else why these vandas leaves are drying?!

  5. #5
    Traci's Avatar
    Traci is offline Senior Member
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    What humidity is it kept at? Just trying to think of anything that could be making it so dry despite the additional watering down.

  6. #6
    chemist's Avatar
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    Quote Originally Posted by Traci View Post
    What humidity is it kept at? Just trying to think of anything that could be making it so dry despite the additional watering down.
    I dont know about galeandra's but mine are getting only from 45-60% RH on average day. Which for good looking one seems to be enough. So i have no idea what is going one with other. I'll post pictures o them later so you guys can compare.

  7. #7
    galeandra is offline Member
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    Quote Originally Posted by Traci View Post
    What humidity is it kept at? Just trying to think of anything that could be making it so dry despite the additional watering down.
    The humidity is between 50-70%, and the temperature between 64-86ºF

  8. #8
    galeandra is offline Member
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    It depends on the day, the humidity is between 50 and over 80%, for example today is 53%, tomorrow it is expected to be the 80%

  9. #9
    ksriramkumar is offline Senior Member
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    It could be some vascular infection of fungi that is causing the vanda not to translocate water from roots to the leaves. I would treat it for a fungal infection and then may be try keep it a high humid area or even in a empty clay pot with some moss to initiate rooting

  10. #10
    chemist's Avatar
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    Here are my two.
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    The leves on one on the left look same as on galeandra's, wrinkled all the way to top leaves.

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