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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Cauliflower > Opaque to white leaves

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Cauliflower > Leaves > Opaque to white leaves

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  • Image: Diamondback Moth 1
  • Image: Diamondback Moth 2
  • Image: Diamondback Moth 3

Diamondback Moth
Plutella xylostella

  • Larvae feed on leaves, turning tissue opaque/white color
  • Affected tissue eventually falls out resulting in small holes
  • Larvae feed on developing heads which can cause deformities
  • Larvae are up to 1/3 inch and pale green in color
  • Present throughout the growing season
  • More information on Diamondback Moth
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  • Image: Powdery Mildew 1
  • Image: Powdery Mildew 2
  • Image: Powdery Mildew 3

Powdery Mildew
Erysiphe polygoni

  • White to gray powdery felt in spots, blotches or complete covering of leaves
  • Initially pale yellow spots on leaves
  • Spots develop on underside of leaves, or on shaded leaves first

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