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