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Creator:: McGregor, Mark D., Gibson, Kenneth E., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mountain pine beetle infestation was detected in stands on the east side of Glacier National Park and the adjacent Blackfeet Indian Reservation in 1979. Infestation in the Park now encompasses an estimated 215,882 acres. About 200 acres are infested on the reservation. In areas sampled, number of trees killed per...
Resource Type:: Technical Report
Full Text:: AND igAk(?...>' c:5\. EAST SIDE GLACIER NATIONAL PARK (MONTANA, 1979) E.? 41 14.-es (f-A 4

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
Full Text:: pine in Glacier National Park, Montana. USDA Forest Serv., 1 Missoula, Montana. J. Econ. Soc. B. C

Creator:: Hamel, Dennis R., McGregor, Mark D., Oakes, Robert D., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mountain pine beetle populations began increasing in Glacier National Park in 1970. Numbers of infested trees increased steadily from an average of 12 to 115 per hectare from 1972 to 1976. Total hectares of infestation have increased from 445 in 1972 to 40,419 ha in 1976. Predictive equations estimate a...
Resource Type:: Technical Report
Full Text:: INFESTATION GLACIER NATIONAL PARK, 1976 D. R. Hamel, M. D. McGregor, Entomologists and R. D. Oakes

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
Full Text:: OF MOUNTAIN PINE BEETLE INFESTATIONS, GLACIER NATIONAL PARK AND GLACIER VIEW RANGER DISTRICT

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