Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Broccoli > Discolored head
Broccoli > Head > Discolored head
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Black Leaf Spot / Gray Leaf Spot
Alternaria spp.
- Gray to black round leaf spots with concentric rings
- Leaf tissue becomes dry, brittle and often falls out, resulting in a ‘shot hole’ appearance
- Leaf spots often appear first on lower older leaves
- Broccoli and cauliflower heads may develop dark brown irregular sunken areas
- More information on Leaf Spot
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Boron Deficiency
- Florets turn brown in broccoli
- More information on Boron Deficiency
