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Creator:: McGregor, Mark D. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: A mountain pine beetle infestation has been active in the St. Regis area since 1964. Heaviest tree mortality occurred during the period 1969-70. The infestation has continued to decline since 1970. Over 2 million board feet of lodgepole and ponderosa pine were killed during the outbreak. Overstocking resulted in slow...
Resource Type:: Technical Report
Full Text:: .--Estimated lodgepole pine volume loss due to mountain pine • beetle, Superior Ranger District, Lolo National

Creator:: Bousfield, Wayne E., McGregor, Mark D., Kohler, Steve, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: The mountain pine beetle, Dendroetonus ponderosae Hopk., has been at epidemic levels in second-growth ponderosa pine stands in the Ninemile area of the Lolo National Forest and surrounding private lands since 1969. An impact survey, using two levels of photography and a small ground sample, was conducted to estimate a...
Resource Type:: Technical Report
Full Text:: 1973 MOUNTAIN PINE BEETLE IMPACT SURVEY ON THE NINEMILE DISTRICT, LOLO NATIONAL FOREST, AND

Creator:: Gibson, Kenneth E. and United States. Forest Service. Northern Region
Abstract:: The series of mountain pine beetle infestations existing on the Plains/Thompson Falls Ranger District, Lob National Forest, since 1971 continued into 1988. While some infestations are waning, others are increasing. The potential for beetle-caused mortality exists in threatened, but as yet uninfested stands. Management alternatives are discussed.
Resource Type:: Technical Report
Full Text:: RANGER DISTRICT, LOLO NATIONAL FOREST The series of mountain pine beetle infestations existing on the

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 reached epidemic levels in the Lazier-Meadow Creek drainages on mixed ownership in 1972. A total of 118,486 trees with an estimated volume of 5,666,124 board feet was killed from 1972 through 1974. Presence of overstocked, mature, nearly pure lodgepole stands, coupled with favorable weather conditions, are believed...
Resource Type:: Technical Report
Full Text:: MOUNTAIN PINE BEETLE INFESTATIONS, LAZIER AND MEADOW CREEK DRAINAGES, PLAINS DISTRICT, LOLO NATIONAL

Creator:: McGregor, Mark D., Shipe, Tilford C., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mountain pine beetle populations reached epidemic levels in 1972 in the Stoney Creek drainage, Ninemile District, Lolo National Forest, Montana. A total of 8,082 trees with an estimated volume loss of 34,356 board feet has occurred from 1972 to 1974. Buildup ratio was 1:1.2 from 1972 to 1973, and 1:1.8...
Resource Type:: Technical Report
Full Text:: MOUNTAIN PINE BEETLE INFESTATION, STONEY CREEK, NINEMILE DISTRICT, LOLO NATIONAL FOREST - 1975 by 2/M. D

Creator:: McGregor, Mark D. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: This report documents the establishment of a study to determine the effect of thinning on incidence of mountain pine beetle, Dendroctonus ponderosae Hopk., infestation in second-growth ponderosa pine stands in western Montana. Although insufficient time has passed for a similar study in Oregon to yield a solid base for a...
Resource Type:: Technical Report
Full Text:: determine the effect of thinning on incidence of mountain pine beetle, Dendroctonus ponderosae Hopk

Creator:: Gibson, Kenneth E., Bennett, D. D., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mountain pine beetle populations increased in 1979 in the Thompson River drainage to levels predicted following the 1978 attack period. New attacks in 1979 averaged 27 per acre. Current estimates indicate another 25 percent of the remaining lodgepole pine could be killed in 1980.
Resource Type:: Technical Report
Full Text:: • PRONG BINDER Report No. 80-12 MOUNTAIN PINE BEETLE STATUS

Creator:: Gibson, Kenneth E., United States. Forest Service. Northern Region. Forest Insect and Disease Management, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: This report contains an overview of the present mountain pine beetle infestation in lodgepole pine stands on Federal, State, and private lands on the Plains Ranger District. Particular emphasis is placed on the potential for beetle mortality in the Thompson River drainage where recent ground surveys show more than 21...
Resource Type:: Technical Report
Full Text:: S. Kohler. 1978. Status of mountain pine beetle infestations, Glacier National Park and Glacier View

Creator:: McGregor, Mark D., Hamel, Dennis R., and Oakes, Robert D.
Abstract:: Mountain pine beetle developed to epidemic levels in lodgepole pine stands in the Thompson River drainage in 1971. Approximately 506,616 trees are infested on 4,444 hectares. Based on buildup ratios, infestations are expected to intensify; develop in uninfected stands; and kill about 1,763,024 trees in 1977. Salvage logging of infested...
Resource Type:: Technical Report
Full Text:: PINE BEETLE INFESTATIONS Thompson River Drainage, Plains District Lolo National Forest, Montana, 1976

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