Sunflower problem
I was growing sunflowers in my garden for a wedding and they were beautiful. I checked them everyday but it seems like within a few days they started getting spots on stalks and leaves started to turn a d the brown spots were all over entire plant. I dont think its rust or powdery mildew. No visible bugs. Could it be phomopsis. Thank you
Frederick County Maryland
1 Response
It looks like you have Alternaria on the leaves, and Botrytis on the flowers.
Neither are uncommon with the extended wet weather we have had.
Here is a page on Botrytis: http://extension.umd.edu/hgic/petal-blight-botrytis-shrubs
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