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Jun 1, 2016 6:41 PM CST
Tiny black specks on leaves of my thyme. They often start on the newest foliage and spread down the stem to other leaves. The thyme is in a window trough, and the infection started in the back of the trough where the leaves grow up against wall, under the lip of the window sill. The specks are completely flat, and can be wiped off. After a few days the leaves turn pale, and eventually shrivel up. I'm thinking fungus, but haven't been able to find anything like it.