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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Evergreen Trees and Shrubs > Fir > Clumps of webbed needles

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Fir > Needles > Clumps of webbed needles

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  • Spruce budworm 1
  • Spruce budworm 2
  • Spruce budworm 3

Spruce budworm
Choristoneura fumiferana

  • Branch tips or branches defoliated
  • Needles webbed together in clumps attached to twigs, turning reddish brown by July
  • Light to moderate infestations confined to upper crown
  • Prefers balsam fir; also feeds on spruce, pine and larch
  • Larva has black head, light brown to gray brown with small spots, up to 1 inch long
  • More information on Spruce budworm...

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