The Orchid Forum, for the UK and Europe (previously known as The UK Orchid Forum) • View topic - Orchid roots covered in green mould
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PostPosted: Fri Nov 10, 2017 9:16 am 
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Still settling in
Still settling in

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I live in: United Kingdom (England)
My nearest city or region is: Brighton
Just noticed this while watering... whats going on here? How should i respond

Thanks for any help in advance
Joe


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PostPosted: Fri Nov 10, 2017 12:12 pm 
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This forum is my spiritual home
This forum is my spiritual home

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I live in: United Kingdom (England)
My nearest city or region is: London SW
Hi Joey,

I've never experienced this with any of my phals, but if I did, I'd probably re-pot into new media, giving the roots a good rinsing beforehand.
It looks more white than green in the photo? but its hard to know how to treat it without knowing exactly what it is?
If the plant seems unaffected and healthy, it could be harmless and one of those things which looks worse than it actually is and often appearing in pots (ie. moss, algae, fungi), it looks like a fungus to me?
I know you said you were watering your plants but the roots do still look a little on the dry side to me, slightly shrivelled and flattened?
Let's see if any-one who's experienced this jumps in?

Steve


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PostPosted: Fri Nov 10, 2017 8:41 pm 
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Starting to put down roots here
Starting to put down roots here

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I had a very similar symptom a long time ago. Looking at your image the problem has spread to pieces of bark too - just like mine.
Definitely time to take out of the pot and patiently clean the white stuff off everywhere with water and a tooth brush and back into clean bark.
I cleaned mine with neat Listerine Original rather than water and cured the problem outright with good plant growth following. I use Listerine a lot for that sort of thing nowadays (and scale/mites) after a tip from a real A-List grower.
I am not sure of the source of my problem but I do use rainwater. Usually that comes from a plastic tub, but when it ran short I used some from a wooden water butt which had not been used for a long time. Whether that water contained some fungal spores, or whether I had a dodgy bark batch I have no idea, but these days I always wash bark a couple of times, soak it for at least 24 hours, then rinse again before use always in tap water.
Richard


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PostPosted: Sun Nov 12, 2017 5:26 pm 
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Still settling in
Still settling in

Joined: Wed Nov 08, 2017 4:07 pm
Posts: 2
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I live in: United Kingdom (England)
My nearest city or region is: Brighton
Yes,
that's the worst side but the whole pot is affected. It's a phal, flowering currently and in reasonable condition... I was about to water it when i noticed (had been watering without looking at pot for some time)
I'll grab some new bark mixture
Checked all other pots and it doesn't seem to be spreading
Thanks for the responses :)


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