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Winterberry > Leaves > Spots or blotches on leaves

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  • Image: 1
    Credit: Whitney Cranshaw, Colorado State University, Bugwood.org
  • Image: 2

    Credit: Whitney Cranshaw, Colorado State University, Bugwood.org

  • Image: 2

    Credit: John Hartman, University of Kentucky, Bugwood.org

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green arrowPowdery mildew
Erisyphe polygoni

  • White spots or blotches on leaves
  • In severe cases leaves and young shoots may be completely covered with white powdery fungal growth
  • Leaves may be stunted, curled or puckered
  • Red or purple blotches may occur on upper leaf surfaces
  • More information on powdery mildew...

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