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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous > Dogwood > Dead or dying branches

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Dogwood > Stems/branches > Dead or dying branches

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  • Image: Plum Curculio 1
  • Image: Plum Curculio 2
  • Image: Plum Curculio 3

Golden canker
Cryptodiaporthe corni

  • Only infects pagoda dogwood, Cornus alternafolia
  • Infected branches turn tan to orange and are covered with orange blister like spore producing structures
  • Infected branches often die during dormancy and fail to leaf out in the spring
  • More information on Golden Canker
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  • Image: Codling moth 1
  • Image: Codling moth 2

Dogwood borer
Synanthedon scitula

  • Holes and brown colored frass around pruning scars, injuries and burr knots
  • Crown dieback
  • Epicormic growth beneath infested area on tree
  • Particularly a pest of flowering dogwood
  • More information on Dogwood borer
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  • Image: Plum Curculio 1
  • Image: Plum Curculio 2
  • Image: Plum Curculio 3

Botryosphaeria canker
Botryosphaeria dothidea

  • Leaves on one or more branches wilt, turn brown and die
  • Bark on affected branches is darker, cracked, or blistered at the site of the canker
  • Wood beneath the canker is dark brown
  • Common on shrubs stressed by drought, winter injury and other factors
  • More information on Botryosphaeria canker
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  • Image: White Rot 1
  • Image: White Rot 2
  • Image: White Rot 3

Dogwood twig borer
Oberea tripuncata

  • Larval tunnels inside branches, making holes in stems to push out frass and sawdust
  • Larvae feed downward, holes often occur near outside end of branches
  • Larval feeding cases leaves on random branches to wilt and turn brown
  • Adults chew on the underside of midrib of leaves causing the leaf to curl downward at tip
  • More information on Dogwood twig borer

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