The Forest Restoration Alliance has begun a project to identify and take cuttings from “surviving” Fraser firs, Eastern and Carolina Hemlocks to test their adelgid resistance. Our goal is to find and propagate naturally occurring or planted Fraser firs, especially from abandoned Christmas tree plantations, and naturally occurring Eastern and Carolina Hemlocks that survive balsam woolly adelgid (BWA) and hemlock woolly adelgid (HWA) infestation, respectively. The firs and/or hemlocks that you help to identify will be bred to produce adelgid-resistant plants.

Step One: Locate a resistant tree

Criteria for Resistance:
Fraser Fir

  • Deep, green needles
  • Thick, healthy branches
  • Retains a single terminal
  • Surrounded by heavily infested, unhealthy trees that have lost their single terminal
  • Few or no visible adelgids

Criteria for Resistance:
Eastern or Carolina Hemlocks

  • Untreated by pesticides or horticultural oils
  • Deep, green needles
  • Thick, healthy branches
  • Little sky visible when looking up through tree canopy
  • Greater than 20 feet tall
  • Surrounded by more than 10 mature dead hemlocks, or greater than 95% mortality
  • What does a hemlock look like?

Step Two: Submit this Form to Let Us Know!

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