Help, what are the dark spots on my phalaenopsis?
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  #1  
Old 10-05-2020, 10:55 PM
TracyM TracyM is offline
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Help, what are the dark spots on my phalaenopsis?
Default Help, what are the dark spots on my phalaenopsis?

Hi everyone,
About 3 weeks ago, the temperature in my region was 95-98F and the humidity was 30s, so I watered my phal everyday. And now, my phal has dark spots on my phal’s new leaf. What are they? What should I do to save my phal? Thanks
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  #2  
Old 10-06-2020, 04:51 AM
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SouthPark SouthPark is offline
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Hard to say what it is due to at the moment.

The media you're using are fairly large chunks of bark, right? If the chunks are too large, then the plant can become dehydrated if the bark doesn't retain enough moisture.

Growers have various approaches to watering their phal. Maybe you can describe your approach - as in how do you do the watering? Do you use a watering can with a tip that delivers the water? Do the leaves become wet for a long time? Does the growing area have natural and gentle air-movement?

And this was the only orchid that developed black patches on the leaf, right?

Also - I forgot to mention - if an orchid is relatively warm or relatively cold, then putting water at a significantly different temperature onto warm or cold leaves can sometimes cause cell issues - leading to busting or deterioration of cells or patches of cells.

This might not be what happened. But just mentioning it - just in case.

For the moment - just provide comfortable temperature for the phal - for the leaves and the roots, and medium level light (not direct sunlight), and nice gentle air-movement. Monitor the situation. Check to see if the leaves become soft or mushy. If the patches dry up and harden, then ok.
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Old 10-06-2020, 07:53 AM
rbarata rbarata is offline
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Help, what are the dark spots on my phalaenopsis? Male
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Are those spots soft and wet?
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Old 10-06-2020, 10:21 AM
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WaterWitchin WaterWitchin is offline
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What rbarata says... can't tell for sure from picture, but looks like edema from looking at the new leaf and your comments.
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Old 10-07-2020, 02:00 AM
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Help, what are the dark spots on my phalaenopsis? Male
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Welcome to the Orchid Board!

Was it in any sun?

The other leaves are wrinkled. That means the plant isn't getting enough water. That may be from underwatering, or from sick roots. In those temperatures and in large bark I would water every day. Try not to get water into the center of the plant, or blow it out with your mouth.
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Last edited by estación seca; 10-07-2020 at 02:04 AM..
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