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08-05-2013, 12:47 PM
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Join Date: Aug 2011
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Location: Vermont
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Girdled root pics!!
I think I figured out how to get pics off my new camera, and took some pics of some of my phal roots, which I think might have 'Thrips'. I got some Sucra Shield from Ray, but it seems to be spreading. HELP!!
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08-05-2013, 12:55 PM
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Join Date: Sep 2009
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It looks more like mechanical damage to me. I don't think it's thrips.
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08-05-2013, 01:04 PM
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What do you mean 'mechanical' damage? This problem was just with one phal, on a few roots but has spread to many, and now I see another one that is near proximity to it is also showing this symptom. I do have to take each one off the shelf I grow them on and flush them at my kitchen sink twice a week. Do you mean that moving them could be doing this?
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08-05-2013, 02:57 PM
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08-05-2013, 03:09 PM
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The roots just look dehydrated to me, they're aerial roots so the low humidity probably caused this. No need to worry.
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Post Thanks / Like - 1 Likes
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08-05-2013, 04:19 PM
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Last edited by Aki_James; 08-05-2013 at 04:22 PM..
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Post Thanks / Like - 1 Likes
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08-05-2013, 07:02 PM
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Thanks for all the replies, but I have to add that what happens eventually at the end piece of a girdled root is that it turns yellowish and is totally dead. And, I have 70% and higher humidity fairly consistently in here. I have other phals on the same shelf of glass, a few feet away, and they're in no way looking like this. I've had all these orchids for several years now. They are in S/H, have circulating air, and especially over the summer months, it's often too humid for comfort. The one I sent pics of starting looking like this around 6 months or so. ???
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08-06-2013, 08:02 PM
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Hmmm ... looks to me like when the roots stop growing for a while, the start again ...
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08-06-2013, 10:20 PM
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^+1 ..I also think it looks like when roots stop growing, and then start growing again, & it could also be some mechanical damage as well, or a mix of the two.
In this link, on page 6 they show what thrip damage to roots look like: (you can see the difference)
http://www.houstonorchidsociety.org/...ySueBottom.pdf
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08-06-2013, 11:49 PM
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I agree. It looks like they are dehydrated and all I can see is either some mechanical damage or places where the root stopped growing and started again. Good luck!
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