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02-15-2007, 05:35 PM
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Member
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Join Date: Feb 2007
Zone: 6a
Location: London, Ontario
Posts: 30
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Help, what is this?
I've noticed some black spots on my Zygopetalum today...  I don't know what it is...
The plant is: Zygopetalum (Pinaroo x Titanic). It's placed on a south-west window.
I spray my orchids every morning to simulate the dew, I water them according a schedule... everything is fine with the bloom but the leafs....
Hope is not something bad I thought it may be the gentic thing...with the hybrid in the sun?... any idea? |
02-15-2007, 06:53 PM
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Senior Member
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Join Date: Nov 2006
Location: Oregon
Posts: 173
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Hi - my 2cents worth:
Zygos are famous for developing tiny black spots on the leaves - it's not a virus or anything bad, just conditional. I believe they prefer indirect light, easy on the fert, and no misting, yet medium kept moist.
At least that's the way I grow mine and it grows like a weed! And, yes, even with those conditions it has some black spotting. If you love the flower, you just put up with the spots!
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Sarah
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02-15-2007, 06:57 PM
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Member
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Join Date: Aug 2005
Zone: 6b
Location: Langley BC, Canada
Posts: 92
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i agree, its hard to find a zigo that has nto black spots on it.
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02-15-2007, 09:22 PM
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Moderator
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Join Date: May 2005
Location: Queens, NY, USA
Age: 28
Posts: 7,147
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Same thing happens with Oncidium. You mist them, they turn into bananas.
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All that is gold does not glitter,
Not all those who wander are lost;
The old that is strong does not wither,
Deep roots are not reached by the frost.
-J.R.R. Tolkien, LOTR, Fellowship of the Ring
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02-16-2007, 03:20 AM
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Member
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Join Date: Aug 2005
Zone: 6b
Location: Langley BC, Canada
Posts: 92
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02-16-2007, 09:10 AM
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Moderator
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Join Date: Jun 2006
Zone: 9b
Location: Central Florida
Posts: 2,897
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Excellent advise and to simplify...
Quote:
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You mist them, they turn into bananas.
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Cheryl
“Although the tongue weighs very little, few people are able to hold it.”
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02-16-2007, 02:32 PM
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Roots are good
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Join Date: Sep 2006
Zone: 5a
Location: Cadillac, Michigan, USA
Posts: 7,434
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You know, the over-ripe ones  
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Ross
http://orchids-ross.blogspot.com/
I don't do most Dendros or large, "floofy orchids". For me it's minis (like Angraecoides), Paphs, and others that crept in somewhere along the line. See my orchid list for complete collection (usually not current.)
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02-16-2007, 05:14 PM
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Senior Member
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Join Date: Jun 2006
Location: Fort Langley, BC
Posts: 101
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In order to cut down or eliminate spotting you need to stop misting on cold dark days, only mist (if you must mist) on bright sunny mornings. Spots occur on leaves that have water droplets sitting on leaves for long periods. You must also increase the air movement. I have a fan blowing directly towards my zygos so the leaves are always blowing gently in the wind. They don't like cold stagnant humid air.
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02-16-2007, 07:19 PM
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Senior Member
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Join Date: Nov 2006
Zone: 6b
Location: Ontario, Canada
Posts: 539
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Quote:
Originally Posted by christina waines
In order to cut down or eliminate spotting you need to stop misting on cold dark days, only mist (if you must mist) on bright sunny mornings. Spots occur on leaves that have water droplets sitting on leaves for long periods. You must also increase the air movement. I have a fan blowing directly towards my zygos so the leaves are always blowing gently in the wind. They don't like cold stagnant humid air.
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Exactly, this is how I treat my zygo's and they don't get the dark spotting anymore. This is also true of many plants.  |
02-17-2007, 02:40 PM
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Member
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Join Date: Aug 2005
Zone: 6b
Location: Langley BC, Canada
Posts: 92
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yep should work for Sharry Babys and other oncids prone to spotting
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