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Filtering by: Subject Lodgepole pine -- Diseases and pests -- Montana -- Glacier National Park

Status of mountain pine beetle infestations, Glacier National Park and Glacier View Ranger District, Flathead National Forest, Montana, 1977

Creator:

McGregor, Mark D., Hamel, Dennis R., Kohler, Scott, and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

Mountain pine beetle populations developed to epidemic level in Glacier National Park in 1972. Buildup ratio of old to newly attacked trees was 1:1.8 from 1976 to 1977. More than 12 million trees are infested on 142,871 acres. Buildup ratio is expected to exceed 1:3 from 1977 to 1978. Management...

Resource Type:

Technical Report
Status of mountain pine beetle infestations, Glacier National Park, 1974

Creator:

McGregor, Mark D., United States. Forest Service. Northern Region. Forest Environmental Protection, and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

Mountain pine beetle populations reached epidemic levels on approximately 4,600 acres in Glacier National Park in 1972. Infested trees increased from 4.9 in 1972 to 10.9/acre in 1975. Majority of trees killed since 1972 were 12 inches d.b.h. and larger in size. Sufficient large diameter lodgepole pine exists to maintain...

Resource Type:

Technical Report