Bloom Native gardener's
field companion

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  1. Life
  2. Animals
  3. Arthropods
  4. Insects
  5. Butterflies and Moths
  6. Emerald Moths and Allies
  7. Operophtera
  8. Western Bruce Spanworm
  9. Supported by

What supports Western Bruce Spanworm

31 native plants
support it in the US
31 caterpillar hosts

Caterpillar hosts All

31 native plants its caterpillars eat, most recorded first.

  • Douglas-fir Pseudotsuga menziesii
  • Common Snowberry Symphoricarpos albus
  • Bigleaf Maple Acer macrophyllum
  • Western Hemlock Tsuga heterophylla
  • Oregon Oak Quercus garryana keystone
  • Red Alder Alnus rubra
  • Grand Fir Abies grandis
  • Box Elder Acer negundo on maples
See all

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