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Creator:: McGregor, Mark D., United States. Forest Service. Northern Region. Forest Insect and Disease Management, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mountain pine beetle populations reached epidemic level on the Hebgen Lake Ranger District in 1970. Infested area increased from 6,680 acres in 1970 to 78,000 acres in 1977. Buildup ratio of trees killed in 1976 to trees killed in 1977 is 1:8. Approximately 1,700,000 trees, containing 175 MMBF of merchantable...
Resource Type:: Technical Report
Full Text:: National . USDA Forest Serv., State and Priv. Forestry, Rept. No. 71-45. • Pfister, R. D., B. L. Kovalchik

Creator:: McGregor, Mark D., Hamel, Dennis R., Oakes, Robert D., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mountain pine beetle developed to epidemic level in lodgepole pine stands in 1969 on the Gallatin District and in 1970 on the Hebgen Lake District. Epidemic infestation occurs on 53,437 hectares. Infestations will intensify in most areas currently infested and develop in uninfested stands, and in excess of 2 million...
Resource Type:: Technical Report
Full Text:: . Rept. No. 75-6. Pfister, R. D., B. L. Kovalchik, S. F. Arno, and R. C. Presby. 1974. Forest habitat

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:: huckleberry 81 7 4 1 6 1 • • • • • • • • • • • 1/ Pfister et al. 1974. • -4

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