. Hazard-rating systems in forest insect pest management : symposium proceedings, Athens, Georgia, July 31-August 1, 1980. Forest insects Biological control United States Congresses; Forest insects United States Analysis; Forest insects United States Management. percentages were added and five stand (or beetle) hazard classes were established; values less than 4 were considered very- low hazard and 27 or more considered very high hazard. A map showed areas with vari- ous degrees of hazard (fig. 6). With this information the land manager could then direct his logging to the most hazardous stand
. Hazard-rating systems in forest insect pest management : symposium proceedings, Athens, Georgia, July 31-August 1, 1980. Forest insects Biological control United States Congresses; Forest insects United States Analysis; Forest insects United States Management. percentages were added and five stand (or beetle) hazard classes were established; values less than 4 were considered very- low hazard and 27 or more considered very high hazard. A map showed areas with vari- ous degrees of hazard (fig. 6). With this information the land manager could then direct his logging to the most hazardous stands first in order to reduce losses until a normal high volume logging opera- tion could be § ^t-t-rt. 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 United States. Forest Service; Society of American Foresters. Entomology Working Group. [Washington, D. C. ?] : U. S. Dept of Agriculture, Forest Service, [1981]
Size: 2184px × 1144px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorunitedstatesforestservice, bookcentury1900, bookcollec
