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Pansy > Leaves > Blotches or spots on leaves

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  • Gray mold 1
    Credit: Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org
  • Gray mold 2

    Credit: R.K. Jones, North Carolina State University, Bugwood.org

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green arrowGray Mold
Botrytis cinerea

  • Brown spots or blotches on leaves or stems
  • Brown spots or blotches on flowers; flowers drop off prematurely
  • As disease progresses, entire leaves, flowers and shoots turn brown
  • Gray fuzzy mold develops on rotted tissue under humid conditions
  • Disease develops during cool, wet weather
  • More information on Gray Mold
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  • Powdery mildew 1
    Credit: Jay W. Pscheidt, Oregon State University
  • Powdery mildew 2

    Credit: Michelle Grabowski, University of Minnesota Extension

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green arrowPowdery Mildew
Sphaerotheca macularis

  • Powdery, fluffy white spots and blotches on leaves, stems, and flower parts
  • Spots typically start on lower leaves but can spread to cover the entire plant
  • Severely infected leaves may be completely covered in white or grayish white fungi
  • In some cases, leaves become curled or twisted or turn yellow due to the infection
  • Pansy cultivars vary in susceptibility to powdery mildew
  • More information on Powdery Mildew
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  • Anthracnose 1
    Credit: Karen Rane, University of Maryland
  • Anthracnose 2

    Credit: Karen Rane, University of Maryland

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green arrowAnthracnose
Colletotrichum violae-tricoloris

  • Tan to gray spots with dark margins on leaves
  • Leaf spots may develop concentric rings like a bull’s eye as they grow larger
  • Sunken brown to tan spots on stems
  • Brown spotting may occur on flower petals
  • More information on Anthracnose
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  • Oedema 1
    Credit: Joseph LaForest, University of Georgia, Bugwood.org
  • Oedema 2

    Credit: Sherrie Smith, University of Arkansas Cooperative Extension

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green arrowOedema

  • Pale-green to white blisters or bumps on the undersides of leaves
  • Blisters brown with age and have a crusty or corky appearance
  • Chews holes in blossoms
  • Older leaves are more affected then younger ones
  • Occurs when plants are overwatered during cool or humid weather
  • More information on Oedema

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