|
Ok, looking at the bottom picture...Sometimes orchids get spots right out of the blue, especially oncidium-types. One or two on a leaf won't really hurt the plant, though if the spots are spreading/increasing in number, then there might be a problem. I don't think you necessarily need to "test" for a fungal infection. You can spray with a fungicide just to be safe, though I really have a feeling that the spots won't be much of a problem. Oh, one tip, try not to keep leaves wet at night.
__________________
Orchids...  |