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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous > Euonymus > Leaves discolored white, yellow or pale green

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Euonymus > Leaves > Leaves discolored white, yellow or pale green

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  • Image: Powdery Mildew 1
  • Image: Powdery Mildew 2
  • Image: Powdery Mildew 3

Two-spotted spider mite
Tetranychus urticae

  • White to yellow stippling on foliage
  • Heavy infestations will cause leaves to turn white, yellow and ultimately grayish bronze; premature leaf drop may occur
  • Webbing may be present
  • Mites usually appear in late June to August; they are more prevalent in hot, dry weather
  • Adult spider mites are small (approximately 1/50 inch long) and are hard to see; they are yellow to dark red with dark spots (need magnification to see)
  • More information on Two-spotted spider mite
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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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