Quote:
Originally Posted by orchidsamore
Your flowers are not fungus but physically damaged from touching something hot like the wall.
It can also happen from too much sun. It can be ignored as it will not spread to other flowers or the plant. This happens quite often for those of us selling at outdoor shows.
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I didn't know that. To me it looks like a Botrytis infection, but its something I've on seen in orchid books and not on my orchids. I know that on floral tissue it doesn't always make the characteristic grey fuzz.