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Cotoneaster > Leaves > Flowers shriveled, brown or black

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  • Image: Winter Injury 1
    Credit: R. Grimm, Switzerland, Bugwood.org
  • Image: Winter Injury 2

    Credit: G. Sundin, Michigian State University

  • Image: 3

    Credit: Michelle Grabowski, University of Minnesota

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green arrowFireblight
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
  • More information on Fireblight...

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