Garden Pests and Diseases: Black Spots on Rudbeckia, 0 by Brent_In_NoVa
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Subject: Black Spots on Rudbeckia
Forum: Garden Pests and Diseases
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Brent_In_NoVa wrote: What are these black spots on my Rudbeckia? They had some of these spots last year, but the plants are covered this year. I have searched around and have seen some information on common fungus problems that cause black leaves on Rudbeckia, but I have not found anything that looks like this. There is a small bump the center of each spot, but I have not spotted any bugs. - Brent |