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  #1  
Unread 05-23-2010, 01:13 PM
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Default Brown sludge on Zygopetalum leaves, turns into black spots

Hi,
My Zygopetalum has a brown sludge on new leaves and the older leaves have brown/black spots. I think this is the same disease. Someone please give me advice on the treatment. Thank you
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  #2  
Unread 05-23-2010, 03:14 PM
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Are you misting your plants?
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  #3  
Unread 05-23-2010, 03:27 PM
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No, I do not mist them. When I water I soak them for about 20 min. I also sprayed them with Physan and Neem oil once in a while. This problem was present before I ever sprayed them with the solutions. Thanks for the reply.
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Unread 05-23-2010, 03:47 PM
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Zygo's are subject to black fungal spots on the leaves. This is a harmless fungus spotting and will not damage the plant. High humidity and good air circulation will help minimize the damage.
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  #5  
Unread 05-23-2010, 03:56 PM
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Thanks Cheryl. Should I isolate them so that they do not infect other orchids?
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  #6  
Unread 06-06-2010, 04:19 PM
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Quote:
Originally Posted by limak View Post
Thanks Cheryl. Should I isolate them so that they do not infect other orchids?
This type of spotting is normal on zygopetalums. No need to isolate them. I have some zygos that are doing this, but are perfectly healthy. I think it depends on the species/hybrid; some are more prone to spotting than others.

The spots to watch out for on zygos are brown, or reddish brown with yellow/clear halo's around their perimeter. They typically mean a much more serious problem, like a virus or bacterial infection.
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Unread 06-06-2010, 07:45 PM
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How large is that pot you got it in?

That looks pretty big for something so small.

Zygopetalums like water, but they can still rot out.
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