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This is a discussion on Mini-Orchid Help- black region on pseudobulb, and leaf spots? within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; Hi! A year and two months ago, I'd gotten myself 3 mini orchids, all in ...
A year and two months ago, I'd gotten myself 3 mini orchids, all in bloom (they did not come with IDs, possibly dendrobium phalaenopsis). While the other two have bloomed this year, the third one refuses to produce new growth, let alone send out spikes
The leaves on the plant has strange spots and color (reddish-black along the middle of two leaves), and one of the pseudobulbs has an ominous black region. Photos:
1. Black region of pseudobulb (red), yet new roots on newest bulb (green):
2. Strange spots on leaves, and yellow tip of one leaf:
3. Strange dots and yellowish center:
4. Closeup of black region, and whole plant:
I am from Dhaka, Bangladesh. The weather at this time of the year is hot and humid. Lowest temperature today was 31 C. Temperature rarely goes below 9 C, even in winter!
I would not worry about the small black spots ; it needs perfect culture to grow perfect leaves, and no-one can do that all the time.. But the black canes are dead ; cut them off, and dry the cut surfaces - ground cinnamon from the kitchen is good for this. The plant will look better without them.