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Phlox Paniculata - wrinkled, discolored leaves #872885
Asked June 12, 2024, 9:47 PM EDT
I am a small scale perennial grower (NYS licensed). Some of my tall Phlox plants have developed wrinkled, discolored leaves. I am hoping it’s not Asters Yellow but I’ve never seen that disease on Phlox so looking for your input. Thank you!
Washington County New York
Expert Response
Thank you for your question. Here is what I’ve learned about diseases and physiological problems of Phlox paniculata, It is possible that it is aster yellows.
List of diseases and physiological problems:
Rot (Sclerotium), leaf spots, aster yellows, Beetles, phlox plant bug (Lopidea), corn Verticillium wilt, crown rots (seedlings), leafy gall earworm, aster leafhopper, scales, wireworms, (Corynebacterium), crown gall (P. drummondii), foliar nematodes, stem nematode, mites, stem canker, bacterial blight (Xanthomonas), leaf thrips, rabbit spot (Septoria), powdery mildews, rusts, stem blight (Pyrenochaeta), downy mildew, viruses, leaf blight (older stems, upwards from base).
Here is a useful link for information about herbaceous perennials. file:///C:/Users/janic/Downloads/NRAES-093.pdf
