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Tree growth in thinned and unthinned white fir stands 20 years after a Douglas-fir tussock moth outbreak / Boyd E. Wickman (Research note PNW ; RN-477)

Tree growth in thinned and unthinned white fir stands 20 years after a Douglas-fir tussock moth outbreak / Boyd E. Wickman (Research note PNW ; RN-477)
Microform図書
1988<YCA-A 13.79:PNW-RN-477>
National Diet Library
  • Subject Heading...Growth Douglas fir -- Diseases and pests -- California, Northern Douglas-fir tussock...

Stem infection by dwarf mistletoe in California firs / John R. Parmeter, Robert F. Scharpf (Research paper PSW ; 165)

Stem infection by dwarf mistletoe in California firs / John R. Parmeter, Robert F. Scharpf (Research paper PSW ; 165)
Microform図書
1982<YCA-A 13.78:PSW-185>
National Diet Library
  • Subject HeadingDwarf mistletoe Fir -- Diseases and pests -- California

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