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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:: No. 1-72-3 • May 1972 EFFECT OF THINNING SECOND-GROWTH PONDEROSA PINE ON INCIDENCE OF MOUNTAIN

Creator:: United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: beetle population in ponderosa pine stands in the Ninemile area of the Lolo National Forest and set a

Creator:: Tunnock, Scott, Meyer, Hubert E., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: . A ponderosa pine needle miner in the Colorado Front Range. USDA, Forest Service, Rocky Mtn. For

Creator:: Bousfield, Wayne E., Meyer, Hubert E., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Epidemic levels of the pine butterfly, Neophasia menapia (Felder and Felder) have been evident in ponderosa pine stands in the Bitter Root Valley since 1969. Evaluations of this infestation were initiated in 1970 to assess overwintering egg populations at 20 locations within the infestation (Ciesla et al. 1971). Defoliation was...
Resource Type:: Technical Report
Full Text:: LOLO NATIONAL FORESTS, MONTANA IN 1972 by W. E. Bousfield and H. E. Meyer- Epidemic levels of the

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