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Old 07-10-2016, 03:36 PM
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New gift developed sunken tiny black spots

Hello my orchidgeeker pals!
I've been away far too long

I received a big-box store orchid yesterday (homer depot) and it is surprisingly lovely but has suddenly (literally overnight) developed tiny black spots all over the leaves. The spots are pencil tip size and sunken. The orchid has a label (can you believe it!) Bnfd. Gilded Tower "Mystic Maze" (I believe an Odontoglossum)

I've gone over the orchid with a fine-tooth eyeball and see absolutely zero signs of infestation or infection- except this sudden speckling. The only thing I've done is give it a good watering with my usual rain water spray bottle...

I gave it a big dousing of physan and have set it off into coventry... None of my other orchids (all windowsill living) have these black pencil point spots. The spots are so small I've only found one good site on the plant for an adequate image; the other image is to demonstrate the general appearance.

Any ideas or suggestions? Should it go back to the store?
Cheers!
Neo
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Old 07-10-2016, 04:41 PM
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It should be ok, I am guessing it's fungal.

Maybe spray with an anti-fungicide. Aside from the fact it's a little unsightly I don't think the plant is in trouble.
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Old 07-26-2016, 05:47 PM
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I am not certain what causes the spotting but it does have beautiful blooms. A few of our Orchid Society members have them and bring them in when they are in bloom. Good luck with yours! Great to see you posting again!
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Old 07-28-2016, 06:01 AM
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My guess is also that it is fungal. Maybe early stage Phyllosticta (which will eventually turn into elongate diamond-shaped lesions).

Treat with a fungicide, provide calcium (gypsum dissolved I'm water should do it), don't mist the leaves, and gradually adjust it to living at the higher end of it's light range. Water in the morning if possible.
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