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Purple Cone Flower (Echinacea) > Spots on leaves

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  • Powdery Mildew 1
    Credit: Michelle Grabowski
  • Powdery Mildew 2

    Credit: Michelle Grabowski

  • powdery mildew 3

    Credit: Michelle Grabowski

  • - CLICK PHOTOS TO ENLARGE -

green arrowPowdery Mildew
Erysiphe cichoracearum

  • Powdery, fluffy white spots and blothces on leaves, stems, and flower parts
  • Tiny black round spheres may be visible within white spots late in the season
  • 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
  • More information on Powdery Mildew...
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  • septoria 1
    Credit: P. Espeset
  • septoria 2

    Credit: Michelle Grabowski

  • septoria 3

    Credit: Janna Beckerman

  • - CLICK PHOTOS TO ENLARGE -

green arrowSeptoria Leaf Spot
Septoria sp.

  • Irregular purplish black leaf spots, often with one side flat along a leaf vein
  • Mature leaf spots often have gray center
  • Leaf spots typically start on the lower leaves but can spred to the entire plant
  • Leaves with many appear completely black, dried up and tattered
  • In severe infections all of the leaves of the plant will appear black
  • More information on Septoria Leaf Spot...

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