Evaluation of mountain pine beetle infestations, Yellowstone National Park, Wyoming, 1972
By: by M.D. McGregor and Malcolm J. Berg.
Contributors: Berg, Malcolm J.; United States. Forest Service. Northern Region. State & Private Forestry.
Series: Insect and disease report; Report -- no. 73-4.; Report (United States. Forest Service. Northern Region) -- no. 73-4.
Publisher: USDA Forest Service, Northern Region, State & Private Forestry
Published: 1973
Place of publication: Missoula, Mont
Language: eng
Subjects: Mountain pine beetle -- Yellowstone National Park.; Lodgepole pine -- Diseases and pests -- Yellowstone National Park.; Douglas fir -- Diseases and pests -- Yellowstone National Park.; Whitebark pine -- Diseases and pests -- Yellowstone National Park.
Description: The mountain pine beetle, Dendroctonus ponderosae Hopk., infestation advanced north and eastward from the 1971 infestation boundary in Yellowstone National Park. Infested trees were found in Indian Creek Campground at the north end of the park and around the north end of Yellowstone Lake. A ground survey showed an average of 15.5 infested trees per acre. A decrease in number of infested trees occurred in older infestation centers in the southwest corner of the park. The infestation will continue at epidemic status in areas containing susceptible stands.
Notes: Caption title.

"February 1973."

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