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Foraging ecology of pollinators in the early stages of secondary succession in the western hemlock (Tsuga heteropohylla (Raf.) Sarg.) zone of the Oregon Coast Range

Creator:: Burikam, Intawat
Abstract:: The early stages of secondary succession of the McDonald and Paul Dunn State Forests, Corvallis, Oregon, were grouped into three stages; herb, herb-shrub, and shrub, based on vegetation types. Flowers of herbaceous species and residual shrubs dominated in the early years after clear-cutting. Woody plants became increasing abundant in the...
Resource Type:: Dissertation
Full Text:: Foraging ecology of pollinators in the early stages of

Regional summary of forest insects and diseases, 1979

Creator:: Dooling, Oscar J. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: forest lands. This report is a summary of insect and disease conditions in the Region during 1979. A

An evaluation of cone and seed insects in selected seed production areas in Region 1 : progress report II

Creator:: Dewey, Jerald E., Jenkins, Michael J., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Insect damage was extensive to Douglas-fir, ponderosa pine, western white pine, and western larch cones at most seed production areas surveyed in 1979. From 70 to 100 percent of the cones from several collecting periods were injured. Moderate damage (40-70 percent of cones injured) occurred to Douglas-fir, ponderosa pine, western...
Resource Type:: Technical Report
Full Text:: , Supervisory Entomologist, USDA-Forest Service, Forest Insect and Disease Management, Missoula, Montana

Engelmann spruce needle and twig blight at the Coeur d'Alene Nursery, Idaho

Creator:: James, Robert L. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: • 1 Forest • Insect & Disease • Management Needle and twig

Results of damage surveys in young Northern Region plantations

Creator:: Rice, John Leslie, Hard, John S., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: • PRONG BINDER Forest Insect & Disease Management SP144 M 3

Evaluation of dwarf mistletoe control, Sula Ranger District, Bitterroot National Forest

Creator:: Dooling, Oscar J., Byler, James W., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Residual Douglas-fir left after harvesting are dwarf mistletoe-infected and pose a threat to regeneration. Felling of residuals, coupled with planned slash disposal and thinning, will effectively reduce dwarf mistletoe intensity and increase future volume yields. The benefit/cost ratio based on timber values only, for the current rotation, is 0.041/1 at...
Resource Type:: Technical Report
Full Text:: • • • • • • V PRONG BINDER 41 Forest• Insect & Disease

Dwarf mistletoe loss assessment on the Bitterroot and Lolo National Forests, Montana

Creator:: Dooling, Oscar J., Pye, Laurel Hilarie, 1952-, Eder, Robert G., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: using a Tektronixe desk-top microprocessor at Forest Insect and Disease Management/Methods Application

Status of mountain pine beetle, Kootenai National Forest, Montana, 1979

Creator:: McGregor, Mark D. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mountain pine beetle populations began building in the Kootenai National Forest in 1972. Infestations now encompass an estimated 48,599 acres of lodgepole pine type and 615 acres of ponderosa pine type. Approximately 25 percent of the high-risk stands, 17 percent of the moderate-risk, and less than 1 percent of the...
Resource Type:: Technical Report
Full Text:: . 19 pp. Bousfield, W. E. 1977. Forest insect and disease damage survey. USDA Forest Serv., State

Western spruce budworm defoliation trend relative to weather in the Northern Region, 1969-1979

Creator:: Hard, John S., Tunnock, Scott, Eder, Robert G., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Western spruce budworm defoliated area in the Northern Region has differed significantly across three discrete geographic zones during the past decade. Aerially visible defoliation in northern Idaho increased from 1.7 million acres in 1969 to a high of 2.2 million acres in 1974, and declined to none in 1979. Defoliated...
Resource Type:: Technical Report
Full Text:: defoliation in northern Idaho increased 41 from 1.7 million acres in 1969 to a high of 2.2 million acres in

ScholarsArchive@OSU

Foraging ecology of pollinators in the early stages of secondary succession in the western hemlock (Tsuga heteropohylla (Raf.) Sarg.) zone of the Oregon Coast Range

Regional summary of forest insects and diseases, 1979

An evaluation of cone and seed insects in selected seed production areas in Region 1 : progress report II

Engelmann spruce needle and twig blight at the Coeur d'Alene Nursery, Idaho

Results of damage surveys in young Northern Region plantations

Evaluation of dwarf mistletoe control, Sula Ranger District, Bitterroot National Forest

Dwarf mistletoe loss assessment on the Bitterroot and Lolo National Forests, Montana

Status of mountain pine beetle, Kootenai National Forest, Montana, 1979

Western spruce budworm defoliation trend relative to weather in the Northern Region, 1969-1979

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