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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous > Euonymus > Spots or blotches on leaves

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Euonymus > Leaves > Spots or blotches on leaves

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  • Image: Sunscald 1
  • Image: Sunscald 2
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Marssonina leaf spot
Marssonina thomasiana

  • Small, purplish red spots with a cream colored center on leaves and young branches
  • Severely infected leaves may turn yellow to red and drop
  • In severe infections, spots may grow together and girdle young shoots
  • Most common on Eastern wahoo (Euonymus atropurpurea)
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  • Image: Sunscald 1
  • Image: Sunscald 2

Powdery mildew
Oidium euonymi-japonici

  • White to gray fungal growth on upper leaf surface; may form a thick felt
  • Leaves may yellow and drop prematurely
  • Young shoots may be curled and twisted
  • Entire shrub may appear gray or discolored
  • More information on Powdery mildew

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