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Catalog of Long Term Research Conducted by the Northeastern Research Station
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Insects: Damage to Forests

# 26 Growth Impact Study
  • Objective:
    To summarize mortality and growth loss caused by spruce budworm in the spruce-fir region of Maine.
  • Objective:
    1) To determine the relationship between white-footed mouse abundance and gypsy moth survival and density.
    2) To determine the relationship between acorn supply and white-footed mouse abundance.
  • Objective:
    To assess the role of habitat differentiation in gypsy moth population dynamics - (focal area).
  • Objective:
    Initially used for short term impacts of gypsy moth on forest and to refine hazard rating systems developed by Herrick and Gansner. Note: plots were subsetted in 1986 - subset was used to monitor long-term impacts and stand recovery.
  • Objective:
    To study defoliation effects on sprouting capacity, vigor, growth, mortality and regeneration under different silvicultural treatments.


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