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Need a diagnosis please...

This is a discussion on Need a diagnosis please... within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; I have a Cirrhopetalum makoyanum. I believe it is sometimes called a Bulbophyllum makoyanum too. ...

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  1. #1
    mde's Avatar
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    Default Need a diagnosis please...

    I have a Cirrhopetalum makoyanum. I believe it is sometimes called a Bulbophyllum makoyanum too. At any rate, it is not liking its culture and I'd like to figure what the problem is... In the photos you can see that the new growths are very wrinkled. They are also growing very slowly and show no signs that they will ever grow to be like the mature growths that were in place when I obtained the plant.
    Is this from it not getting warm enough? I read they prefer winter daytime highs in the mid 70's which they definitely do not get in the winter here, more like 68-69 for a few hours each day, lows around 61 (indoor winter temperatures).

    Is this from too little or too much water? I try to keep them moist which is what I read they like, but the root system is shallow and the top of the media dries out fast?

    Could it be water quality or fertilizer issue? I've never had problems with my water before but I've also never had a plant in this genus either? (As I've mentioned in other posts, I use rain water from late spring through mid fall and spring water straight out of the ground in the winter.)

    What about light. I've read they are really low light plants, in the 1000 fc range, which I'm sure they are getting with the natural light exposure from the East supplemented by CFL bulbs... Maybe too much light?

    Any suggestions would be appreciated. Thanks. Matt

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  2. #2
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    I don't have that one , so my info. might not be any good , from the picture I would reduce the light a little , is the leaf hard ? What is the humidity ? I did start adding a little tap back to the ro and rain water for the minerals. I just looked it up , what I read is it is grown like a Bulbo. they said bright light .. humm ...I thought Bulbos. did not like a lot of light... Maybe I should give mine more ? Gin

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    Have seen similar on a Miltassia i have , this seemed to be caused by being kept to wet.Basically it did not get on with s/h , i have swapped to a bark mix & it appears to be growing normally now.

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    from limited experience with bulbos and cirrhos, I've found that they are happiest when they are warm... low or high light they will grow if warm, and love wet as long as there is plenty of air movement... so I'd start with temps... is there a way to give this baby a bit more warmth?

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    Well, I've already moved it to about the 7 foot mark on my pole system where it's a little bit warmer and further away from the supplemental lighting in case it was getting too much, but maybe I'll try to move it upstairs which maintains 5-7 degrees warmer than downstairs. This is where I keep the few Phal. that I have. Not sure what to do about the watering...since I read they like to stay moist nearly all the time, I was thinking of adding some sphag. to the bark mix I have it in but if too much water is causing the wrinkling, then?

    Any other suggestions or experiences with this?

    I did have an Encyclia cochleata bulb develop a very wrinkled section in its leaves a few years back and the local grower told me that the problem was that it dried out too much during the time that area was developing, but it seems really hard to compare problems between genus/species and with this Cirrho. it seems to be the entire new growth, not just a little section.

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    Leaves will pleat, either horzontally or vertically, if the plant's not getting enough water when they form (it's irreversible), but that doesn't look like pleating.

    Julie

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    some of my less tolerant masdies will do that with low humidity (40-50%).

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    Hi Matt,
    It looks your friends here have given you ample of advices and they make sense.
    Water and temperature seem to be the two factors needed to be considered here. I have seen plants got pleated leaves because of not enough moisture/humidity. But I also have seen plants got this problem due to growing at the wrong temperatures like too hot for them! Another possibility is that there is not enough temperature difference between day and night or the night temperature is not cool enough so the plant could not rest at night. That could cause development deformity as well. This factor is important for orchids with pseudobulbs. Maybe a little research regarding their natural habitats and their growing season in their natural environments might help you and enlighten all of us.

    Cheers. Hoa.
    Last edited by Hoa Tony Nguyen; January 24th, 2006 at 01:17 AM.

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