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I know that most orchids don't like water on their leaves...and some really don't do well at all! I've got 3 paphs with, what I believe is water damage to the leaves. None of my other paphs exhibit this situation even though they get wet from time to time. I try very hard not to wet them but in the course of watering the GH things happen. They always dry within an hour or so. My question is: Is this fungal, bacterial or just dying leaves? I know old paph leaves(recently flowered) die, but this is only on 3 plants and looks more than just leaves past theie prime. In fact you can see that it is affecting some of the newer growth. The leaves where the discoloration is located is dry and just keeps working its way back to the crown.
Location: Lyon, France but studying in Wageningen, Netherlands
Age: 23
Posts: 1,454
Just my : I don't know what it is, but if it is bacterial/fungal, you should cut off all the brown parts, cutting into healthy part below. Hopefully this can stop the spread. Use sterilized scissors to avoid spreading whatever it is. I hope someone will be able to give you a better idea of what the problem is!
__________________ Camille
Completely orchid obsessed and loving every minute of it....
looks like a fertilizer or water burn- from either too much fert. or water that was not distilled. either way, it does not look like crown rot because i think crown rot comes from the bottom.
Right, I didn't mean to suggest that this was like crown rot on a phal....just that it might be some type of fungal infection or possibly bacterial. I also thought it might be water damage but the way it travels is disconcerting
Doc, I had a similar experience with Paph farrieanum when fertilizer water dripped into the crown. The tip of the newly emerging leaf developed rot (and I do believe this is rot) and snipped off the tip when I discovered it. I sprayed with Thiomyl the next day (after the cut end dried.) Other than the end of that old leaf still being blunt where I cut it, there was no permanent damage. Got Thiomyl? It's a systemic rot curative.
I don't do most Dendros or large, "floofy orchids". For me it's minis (like Angraecoides), Masdies, Paphs, and others that crept in somewhere along the line. See my orchid list for complete collection (usually not current.)
Normao or Not Normal
: I don't know what it is, but if it is bacterial/fungal, you should cut off all the brown parts, cutting into healthy part below. Hopefully this can stop the spread. Use sterilized scissors to avoid spreading whatever it is. I hope someone will be able to give you a better idea of what the problem is!
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