Problem with Psychopsis mariposa 'Green Valley'
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  #1  
Old 08-13-2020, 03:04 PM
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Default Problem with Psychopsis mariposa 'Green Valley'

This is my only Psychopsis and I hope she won't be soon departed. Just a few months ago, she developed some yellowing on her oldest leaf which has now subsequently turned brown - but yet is still very firmly attached to her pseudo bulb. She has three spikes, all bloomed a few months ago. She currently has two spikes in bud but the brown leaf p.bulb one has no bud. Now, to my horror, just today, I noticed that another two of her leaves are yellowing. Is it, could it be ... sunburn?? Hopefully ...



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Old 08-13-2020, 03:45 PM
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Problem with Psychopsis mariposa 'Green Valley' Male
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What are your day/night temperatures, humidity? What kind of light? How are you watering?

It's out of focus, but at the base of the pseudobulb in the photo with the brown leaf - do I see white cottony material?
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Old 08-13-2020, 04:45 PM
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Originally Posted by estación seca View Post
What are your day/night temperatures, humidity? What kind of light? How are you watering?

It's out of focus, but at the base of the pseudobulb in the photo with the brown leaf - do I see white cottony material?
Sorry about the poor quality pic but that white dot is diatomaceous earth. My day temps are high right now about 34°C and night time is probably only slightly lower. Current humidity is high - ish about on average 50°C to 65°C. I grow her on a south facing window. No shade.

I have had her since 2012 so she has weathered many storms with me. She was fine, really great root system. I just can't think.
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Old 08-13-2020, 06:29 PM
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I suspect it's from heat and sun. Maybe move it back from the window a bit.
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Old 08-14-2020, 02:19 AM
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I suspect it's from heat and sun. Maybe move it back from the window a bit.
I wondered if it was heat damage but either way she is not going to bloom again until she makes a new pbulb. Thanks for your replies.
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Last edited by Susie11; 08-14-2020 at 02:28 AM..
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