Picea engelmannii

Genus-level evidence

6 claims where the source named the organism only at the genus or collective level (e.g. Picea sp.) and did not determine the species. Listed separately because they apply to the genus, not specifically to Picea engelmannii.

• herbivory · Choristoneura fumiferana → Picea spp. · effect: harmful

  “the spruce budworm, C. fumiferana”

  Dent D. (2000) · Insect Pest Management, 2nd Edition · p. 53 #6492394
• herbivory · Choristoneura fumiferana → Picea spp. · effect: harmful

  “feed on buds and new foliage, severely defoliating spruces and firs”

  Pedigo L.P. (2002) · Entomology and Pest Management, Fourth Edition · p. 124 #6492687
• herbivory · Choristoneura occidentalis → Picea spp. · effect: harmful

  “feed on buds and new foliage, severely defoliating spruces and firs”

  Pedigo L.P. (2002) · Entomology and Pest Management, Fourth Edition · p. 124 #6492689
• herbivory · Choristoneura fumiferana → Picea spp. · effect: harmful

  “also feed on larch, pine, hemlock, and white, red, and blue spruce”

  Pedigo L.P. (2002) · Entomology and Pest Management, Fourth Edition · p. 187 #6492736
• herbivory · Adelges tsugae → Picea spp. · effect: harmful

  “all native and common exotic Picea spp. are unsuitable hosts for the sexuparae”

  Andow D.A., Ragsdale D.W., Nyvall R.F. (1997) · Ecological Interactions and Biological Control · p. 40 #6492867
• herbivory · Choristoneura fumiferana → Picea spp. · effect: harmful

  “the spruce budworm, C. fumiferana”

  Dent D. (2000) · Insect Pest Management, 2nd Edition · p. 53 #6492924