Brown, woody leaf disease on Epidendrum stamfordianum
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Brown, woody leaf disease on Epidendrum stamfordianum
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  #1  
Old 12-06-2022, 08:24 PM
snoopy0330 snoopy0330 is offline
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Brown, woody leaf disease on Epidendrum stamfordianum
Default Brown, woody leaf disease on Epidendrum stamfordianum

I've noticed this brown discoloration on the base of the leaves of my epidendrum stamfordianum. The leaves do not fully form, are shriveled on the edges, and have this thick woody brown discoloration or deformity (not really sure what to call it). It does not scrape off. The pseudobulb is not brown, black, or squishy. Except for the weird areas the leaf looks ok. It's a bit wrinkled but otherwise green. There are new growths on the plant that are not damaged. The leaves on the old growths are not yellowing or falling off. The roots growing over the side of the pot are normal in appearance. I don't see scale, or mealybugs, or mites (I've had those in the past). Thoughts?

Of note I see something similar on a cattleya hybrid growing nearby. I've put that photo in as well.
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Brown, woody leaf disease on Epidendrum stamfordianum-pxl_20221206_235506165-jpg   Brown, woody leaf disease on Epidendrum stamfordianum-pxl_20221206_235512784-jpg   Brown, woody leaf disease on Epidendrum stamfordianum-pxl_20221206_235529200-jpg   Brown, woody leaf disease on Epidendrum stamfordianum-pxl_20221206_235631060-jpg   Brown, woody leaf disease on Epidendrum stamfordianum-pxl_20221207_000515548-jpg  


Last edited by snoopy0330; 12-06-2022 at 08:29 PM..
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  #2  
Old 12-06-2022, 10:27 PM
Dimples Dimples is offline
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Brown, woody leaf disease on Epidendrum stamfordianum
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Everything except the last photo look a lot like physical damage I see often on fruit and/or fruit trees where things have been rubbing together. The more tender parts will scab over from the damage and can look quite horrid. Hopefully others will chime in since I donít grow either of those plants.
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  #3  
Old 12-07-2022, 08:56 AM
t_howell t_howell is offline
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Brown, woody leaf disease on Epidendrum stamfordianum
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Yeah, I agree, physical damage from leaves rubbing together. The last one might be anthocyanin for excessive sun?
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