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Help! Yellow spots on my Vanda Denisoniana leaves? yellow spots on the back of the leaves
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  #1  
Old 06-29-2012, 07:14 PM
marcecarloh marcecarloh is offline
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yellow spots on the back of the leaves
Default yellow spots on the back of the leaves
hello!! I have a dendrobium that is blooming! but today I noticed some yellow spots on the back of the leaves. the flowers are gorgeous and the plant looks ok. a few months ago my orchids had red spider (spider mite) but this is controlled now.
those 3 photos are the same orchid. please help me!
iīm sorry if my english itīs not perfect
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  #2  
Old 06-30-2012, 01:18 AM
WhiteRabbit WhiteRabbit is offline
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It does look like something has been sucking on the leaves, but I don't know what it might be - hopefully someother members will be able to help out!
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  #3  
Old 07-01-2012, 12:09 AM
WhiteRabbit WhiteRabbit is offline
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anyone have any ideas/opinions?
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  #4  
Old 07-01-2012, 02:19 AM
marcecarloh marcecarloh is offline
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yellow spots on the back of the leaves
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yes please I need your help!
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  #5  
Old 07-01-2012, 08:29 PM
quiltergal quiltergal is offline
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It looks like it might be ring spot virus. I sure hope not. Isolate immediately.
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  #6  
Old 07-02-2012, 12:01 AM
marcecarloh marcecarloh is offline
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yellow spots on the back of the leaves
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it can be a virus even if itīs blooming?? how long I have to wait to be sure???
iīm really scared now
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  #7  
Old 07-02-2012, 01:05 AM
marcecarloh marcecarloh is offline
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yellow spots on the back of the leaves
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please help me with a web page were I can buy some strips for testing that virus so I can bring it to my country.
and please give some advice about how to recognize viruses. I have about 100 orchids and I donīt want them to be infected. are my babies
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  #8  
Old 07-02-2012, 03:44 AM
james mickelso's Avatar
james mickelso james mickelso is offline
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It just looks like something was sucking on it. Ring spot looks different. Larger. This just loks like meanical damage. Isolate it just to be sure and if it doesn't get worse in thenext week, I wouldn't worry about it. Yellow jackets and other wasps make holes in soft leaved plants. Are all of your leaves like this? Is this damage just on the leaf tips? Are there more every day?
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  #9  
Old 07-02-2012, 10:22 AM
marcecarloh marcecarloh is offline
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yellow spots on the back of the leaves
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not all of the leaves have that problem. I think that problem has been for a while, I already isolate the plant and iīll be watching it for a week. the problem now is that 3 flowers didnīt bloom, like they get dry iīm not sure.
the damage itīs not only on the leaf tips, but the worst leave itīs the one I took the picture
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  #10  
Old 07-13-2012, 09:19 PM
marcecarloh marcecarloh is offline
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yellow spots on the back of the leaves
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it has been almost 2 weeks since I post that photos and my orchid leaves looks exactly the same. so can I say itīs not a virus??????
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