This sessile-leaved bellwort (Uvularia sessilifolia) is spotted with bright green dots while the rest of the plant turns yellow. What’s happening here?
Answer
These spots are created by a gall midge in the genus Menunieriella. As these midges feed, they secrete compounds that delay the breakdown of chlorophyll, which keep the galls green even as the rest of the plant begins turning yellow.
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