. Differential effects of the 1944-56 spruce budworm outbreak in eastern Oregon. Spruce budworm Oregon; Trees Diseases and pests Oregon. Figure 8.—Annual radial and height increment compari- sons between lightly damaged Douglas-fir and adjacent grand fir trees which appeared to be in Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Williams, Carroll B. cn; Pacific Northwest Forest and Range Experiment Station (


. Differential effects of the 1944-56 spruce budworm outbreak in eastern Oregon. Spruce budworm Oregon; Trees Diseases and pests Oregon. Figure 8.—Annual radial and height increment compari- sons between lightly damaged Douglas-fir and adjacent grand fir trees which appeared to be in Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Williams, Carroll B. cn; Pacific Northwest Forest and Range Experiment Station (Portland, Or. ). [Portland, Or. ] : Pacific Northwest Forest and Range Experiment Station, Forest Service, U. S. Dept. of Agriculture


Size: 1388px × 1801px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity