Dark spots on leaves, flower spike and buds
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  #1  
Old 12-24-2010, 05:36 PM
AlaskanTransplant AlaskanTransplant is offline
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Dark spots on leaves, flower spike and buds Male
Default Dark spots on leaves, flower spike and buds

What should I do about these spots on my plant? I noticed 2 of the bulbs are getting black spots on their leaves. Both of them are in bloom and one has spots that are showing up at the base of the spike as well as at the base of the buds and on the buds themselves.

The entire plant is in bloom but it seems that only 2 of the bulbs are effected by these spots. I included pics of the affected bulbs and leaves as well as a picture of the healthy spike for comparison.

Further more one of the bulbs lost its leaves and doesn't look all to good. I was thinking of removing it altogether at the base right above where it looks like there might be some new growth.

I am new to this plant, its a den hybrid of some sort which I picked up on sale out of bloom so I'm very excited to see what the flowers will look like. Any help you can give me to help see this plant through will be greatly appreciated.
Attached Thumbnails
Dark spots on leaves, flower spike and buds-ap1010036-jpg   Dark spots on leaves, flower spike and buds-ap1010046-2-jpg   Dark spots on leaves, flower spike and buds-ap1010045-2-jpg   Dark spots on leaves, flower spike and buds-ap1010043-2-jpg   Dark spots on leaves, flower spike and buds-ap1010042-2-jpg  

Dark spots on leaves, flower spike and buds-ap1010047-2-jpg   Dark spots on leaves, flower spike and buds-healthy-spike-jpg   Dark spots on leaves, flower spike and buds-bad-bulb-jpg   Dark spots on leaves, flower spike and buds-bad-bulb-2-jpg   Dark spots on leaves, flower spike and buds-entire-plant-jpg  

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  #2  
Old 12-25-2010, 07:31 AM
CTB CTB is offline
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Looks kind of bad to me, maybe a fungi, giving you a bump maybe someone can help. Welcome to the Orchid Board, hope you'll make lots of posts.
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  #3  
Old 12-25-2010, 12:46 PM
AlaskanTransplant AlaskanTransplant is offline
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Dark spots on leaves, flower spike and buds Male
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Yes I agree and am starting to worry. I really want to save the plant and I know that I shouldn't wait to long to take action. I was reading around the forum but couldn't find any definitive answers.

I was wondering if I should remove the affected areas of the leaves in order to stem the spread of a possible fungus. Would this be a good idea? However this won't help me with the spots on the spikes and buds as removing them would mean no flowers
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Old 12-26-2010, 08:22 AM
CTB CTB is offline
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bump
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  #5  
Old 12-27-2010, 12:07 AM
Zoi2 Zoi2 is offline
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The black and rust looking spots look like fungal spots from water. Do you mist the plant? Are you letting it dry out before watering? How is your air circulation?
I would spray some straight brown Listerine on the spots and let the plant dry out a bit before rewatering.
Joann
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  #6  
Old 12-27-2010, 10:08 AM
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Gin Gin is offline
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I think I see some white spots in the picture could possibly be mealy bugs the Listerine will take care of them if there are any .
The buds look like the buds on my Wonder Nishii
Exotic Orchids of Maui: Den. Wonder Nishii x Den. Spider Lily
if it is that one the spots are normal on the buds ..
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  #7  
Old 12-27-2010, 07:31 PM
AlaskanTransplant AlaskanTransplant is offline
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Dark spots on leaves, flower spike and buds Male
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Thank you for the replies, I went ahead and removed the areas of the leaves where the spots where and applied ground cinnamon to the cuts. I also cut away small sections of the spike where the spots where showing up as well along with removing 2 of the more affected buds. I applied ground cinnamon to those wounds as well and sprayed the media with Physan 20. The plant seems to have responded well to this as it hasn't dropped the remaining buds, but only time will tell.

As far as watering I water it about once every other week and spray the media daily ensuring that it drys out a good deal between sprayings. I'm pretty good about avoiding water spots but its always possible. I increased the air circulation as well. The rooms that the plants are in tends to be fairly dry as well, around 40%.

In the future I will make sure to have some listerine on hand to try that before cutting leaves away, I did all this before I got any responses going off of things I have read on this site. Thanks for the info and i'll keep you posted as to how things turn out.
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  #8  
Old 12-27-2010, 09:44 PM
Zoi2 Zoi2 is offline
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Post some pictures of your blooms too, those purple spots on the buds are really cool.
Joann
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