Black spots on Black Eyed Susan foliage - Knowledgebase Question

Bexley, OH
Question by debbelinky
July 6, 2007
What causes black spots on the leaves of Black Eyed Susans and how do I get rid of them?

Answer from NGA
July 6, 2007


From your description, it sounds like a fungal disease. But, without actually seeing the plant I can't positively diagnose the problem. Black Eyed Susan vines grow best in full sunshine, in rich, moist soil. They need lots of air circulation to keep the plants healthy. You might want to take a sample of the affected leaves to your local Cooperative Extension office or Master Gardener Clinic for a positive identification of the problem plus recommended solutions. Best wishes with your garden!

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