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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous > Cotoneaster > Flowers shriveled, brown or black

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Cotoneaster > Leaves > Flowers shriveled, brown or black

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  • Image: Winter Injury 1
  • Image: Winter Injury 2
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Fire blight
Erwinia amylovora

  • Infected flowers appear water-soaked, shrivel and turn brown or black
  • Leaves wilt, turn reddish brown; appear as though scorched by fire and cling to twigs
  • Infected shoots turn brown and bend into a shepherds' crook
  • Cankers on older branches cause bark to be dark, cracked and sunken
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  • More information on fire blight

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