My tall garden phlox are ... - Ask Extension
My tall garden phlox are diseased. Leaves are turning yellow and brown, worse on the bottom. The tips are deformed. There is no powdery mildew pres...
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My tall garden phlox are ... #257243
Asked June 26, 2015, 10:01 AM EDT
My tall garden phlox are diseased. Leaves are turning yellow and brown, worse on the bottom. The tips are deformed. There is no powdery mildew present. They are not turning yellow or brown in the veins, but rather in between the veins. I have picked some and could mail them to you if you like.
Dakota County Minnesota
Expert Response
Here is a link to look at that you could use to compare to what you are seeing. It could be Aster Yellows, if so you will have to destroy them. http://www.extension.umn.edu/garden/diagnose/plant/annualperennial/phlox/leavesdiscolored.html .
Here is a link to the Plant Disease Clinic if you would like to send in a sample. http://pdc.umn.edu/submit-sample
