Index Catalog // ScholarsArchive@OSU

Pilot experiment of forest fertilization during an outbreak of the western spruce budworm in Northeastern Oregon

Creator:: Mason, Richard R., Wickman, B. E., Paul, H. G., and Torgersen, T. R.
Abstract:: Mixed-conifer stands of grand fir (Abies grandis (Dougl. ex D. Don) Lindl., Douglas-fir (Pseudotsuga menziesii var. glauca (Beissn.) Franco), and ponderosa pine (Pinus ponderosa Dougl. ex Laws.) were fertilized with nitrogen and combination treatments of nitrogen, phosphorus, potassium, and sulfur to test their effects on trees and associated insects during...
Resource Type:: Technical Report

Ant predators of the Western spruce budworm (Choristoneura occidentalis Freeman) : species composition and patterns of occurrence in eastern Oregon and western Montana

Creator:: Youngs, Lorna C.
Abstract:: The identity and distribution of ant species preying on the western spruce budworm (Choristoneura occidentalis Freeman) was investigated in eastern Oregon and western Montana. A sticky trap was developed to index ant foraging activity in the canopy by intercepting ants falling from the tree as they traveled between canopy and...
Resource Type:: Dissertation
Full Text:: predators of the western 35 spruce budworm, Choristoneura occidentalis Freeman in eastern Oregon and

Thinning and urea fertilization effects on emerging grand fir (Abies grandis) foliage and growth of western spruce budworm (Choristoneura occidentalis) larvae

Creator:: Savage, Thomas J.
Abstract:: The objective of this study was to determine how the balance of carbon to nitrogen in a grand fir ecosystem affects the chemistry of emerging grand fir foliage and the growth of western spruce budworm larvae. Forest plots in the grand fir zone of eastern Oregon were thinned, thinned and...
Resource Type:: Masters Thesis

Survival of early instars of the western spruce budworm (Choristoneura occidentalis Freeman)

Creator:: Egan, Thomas H.
Resource Type:: Dissertation
Full Text:: Survival of early instars of the western spruce budworm

Western spruce budworm in the Northern Region : 1985 situation analysis

Creator:: United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management, United States. Forest Service. Timber Management, and United States. Forest Service. Planning, Programming, and Budgeting
Resource Type:: Technical Report
Full Text:: • • I I • WESTERN SPRUCE BUDWORM IN THE NORTHERN REGION

Observations on the impact of western spruce budworm on the Valley Creek Drainage, Flathead Indian Reservation, Montana

Creator:: Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: The western spruce budworm, Choristoneura occidentalis (Free.), has caused a measurable impact on a portion of the Flathead Indian Reservation during a 5-year infestation period. This survey showed that most of the grand fir and alpine fir, and 13.8 percent of the Douglas fir has been top killed in the...
Resource Type:: Technical Report
Full Text:: 1973 OBSERVATIONS ON THE IMPACT OF WESTERN SPRUCE BUDWORM IN THE VALLEY CREEK DRAINAGE, FLATHEAD

Establishment report of the western spruce budworm silvicultural demonstration project on the Gallatin and Lolo National Forests, Montana

Creator:: Bousfield, Wayne E., Wulf, N. William, Stipe, Lawrence E., and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management
Resource Type:: Technical Report
Full Text:: • A3 I/0.83 Report 83-18 3450 December 1983 ESTABLISHMENT REPORT OF THE WESTERN SPRUCE BUDWORM

Western spruce budworm egg masses for predicting defoliation potential in the northern region : progress report

Creator:: Tunnock, Scott and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: An attempt was made to predict western spruce budworm defoliation using egg counts from plots in the Douglas-fir type east of the Continental Divide in Montana, the Douglas-fir type west of the Continental Divide in Montana, and the mixed grand fir Douglas-fir type of northern Idaho. The parameters used in...
Resource Type:: Technical Report
Full Text:: . Coulter, 1972. Sampling western spruce budworm on Douglas-fir in eastern Oregon. USDA Forest Serv., Pac

The effect of cold temperatures on the length of diapause of the spruce budworm (Choristoneura fumiferana (Clem.)

Creator:: Fellin, David G.
Resource Type:: Masters Thesis
Full Text:: points in 5 proposed spruce budworm control units in western iontana. The bole sections were stored

Some environmental factors influencing rearing of the spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae) under laboratory conditions

Creator:: Pitman, Gary Boyd
Resource Type:: Masters Thesis
Full Text:: spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: tortricidae) under laboratory conditions

ScholarsArchive@OSU

Pilot experiment of forest fertilization during an outbreak of the western spruce budworm in Northeastern Oregon

Ant predators of the Western spruce budworm (Choristoneura occidentalis Freeman) : species composition and patterns of occurrence in eastern Oregon and western Montana

Thinning and urea fertilization effects on emerging grand fir (Abies grandis) foliage and growth of western spruce budworm (Choristoneura occidentalis) larvae

Survival of early instars of the western spruce budworm (Choristoneura occidentalis Freeman)

Western spruce budworm in the Northern Region : 1985 situation analysis

Observations on the impact of western spruce budworm on the Valley Creek Drainage, Flathead Indian Reservation, Montana

Establishment report of the western spruce budworm silvicultural demonstration project on the Gallatin and Lolo National Forests, Montana

Western spruce budworm egg masses for predicting defoliation potential in the northern region : progress report

The effect of cold temperatures on the length of diapause of the spruce budworm (Choristoneura fumiferana (Clem.)

Some environmental factors influencing rearing of the spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae) under laboratory conditions

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