- Rudbeckia disease
The last two seasons my Rudbeckia has gotten all brown and died early. It starts with brown leave and then the whole plant. It does not look like the pictures of septoria leaf spot that I got from the extension where I called. It didn't start with round spots but brown curled leaves and the whole plant died before most of them bloomed much. I've seen this quite a bit in Michigan this year--Detroit area. Does anyone know what it is or how to get rid of it. The plants have thrived in my semi-sunny location for 6 years and been beautiful until last year.