• Donohue, J
  University of Maine
  
• Rourke, R.
  University of Maine
  
• Minerowicz, E.
  University of Maine
  
• Genco, J.
  University of Maine
  
• Fricks, A.
  University of Maine
  

Eight live red spruce, and eight killed by the budworm, were harvested in northern Maine and kraft pulped. Moisture content of live trees was 2.8 times greater than dead trees. There was no difference in specific gravity. Dead trees yielded fewer acceptable chips (5/8"< accepts <1-1/8") and more chips retained on the 3/8" screen. Screen pulp yield of control trees, 42.8%, was significantly greater than the average yield from dead trees, 41.3%. Permanganate number and pulp viscosity were similar for both groups. Regression analysis of physical properties led to the conclusions that tear strength was not different for dead trees, zero-span tensile and burst strengths were greater for live-tree pulps, and hand sheet with higher bulk are formed from dead-tree pulps. SEM examination of wood from dead trees revealed varying degrees of fungal intrusion. Unbeaten fibers from dead trees were slightly fibrillated, possibly due to decay.