Posted 9:57 AM 10/10/2012 : Melinda's Garden Moment: Leaf Spot on Rudbeckia
The beautiful bright yellow daisy-like flowers of rudbeckia are often overshadowed by the diseased foliage.
A bacterial and several fungal leaf spot diseases cause purplish-black spots on the leaves of rudbeckia. Severe infestation can totally blacken the leaves and cause the plants to