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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Broccoli > Leaf edges brown

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Broccoli > Leaves > Leaf edges brown

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  • Image: Boron Toxicity 1
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Boron Toxicity

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  • Image: Black Rot 1
  • Image: Black Rot 2

Black Rot
Xanthomonas campestris

  • Leaves wilt, turn yellow and eventually turn brown and die
  • Yellow V-shaped lesions develop on margin of leaves, the point of the v follows a vein towards the base of the leaf
  • Black veins can be seen in infected leaves, petioles and stems
  • Sticky yellowish liquid bacterial ooze may be seen if infected veins are cut
  • Disease favored by hot, humid conditions
  • More information on Black rot...

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