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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

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

A demonstration of basal area cutting to manage mountain pine beetle in second-growth ponderosa pine : progress report no. 1

Creator:: Bennett, D. D., McGregor, Mark D., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: Disease Management, R-1, and Research Work Unit 2201, 411/ Intermountain Forest and Range Experiment

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

Insect Control in Beans with Soil Applied Systemic Insecticides, 1979

Creator:: Stoltz, Robert L.
Resource Type:: Conference Proceeding
Full Text:: the planting applications with all chemicals. The overall percent controls for pest insect and spider

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:: such as host defoliation, para- sites, predators, and disease, is suspected of causing change in

Establishment report : permanent mountain pine beetle population trend plots, Montana, 1979

Creator:: Gibson, Kenneth E., McGregor, Mark D., Bennett, D. D., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Thirty permanent mountain pine beetle population trend plots were established in each of six areas in the state in 1979. Infestation levels ranged from 0 to 47.8 new attacks per acre. The potential for increased mortality is considered high for all areas. Each area will be evaluated for 5 years...
Resource Type:: Technical Report
Full Text:: . Bennett (USDA-Forest Service, Northern Region, Forest Insect and Disease Management Report No. 80-8

R-1 forest insect and disease damage survey system

Creator:: Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: The purpose of insect and disease damage surveys is to estimate losses caused by various pests, so that the land manager can prescribe appropriate management action. Systematic ground data collection systems provide to the land manager loss data that can be used for cost benefit analysis, management plans, environmental impact...
Resource Type:: Technical Report
Full Text:: four basic pest types: (1) bark beetles, (2) defoliators, (3) disease, (4) miscellaneous insect and

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

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:: trees and stands are also more vulnerable to attack by other disease organisms and insects. Other funds

ScholarsArchive@OSU

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

Regional summary of forest insects and diseases, 1979

A demonstration of basal area cutting to manage mountain pine beetle in second-growth ponderosa pine : progress report no. 1

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

Insect Control in Beans with Soil Applied Systemic Insecticides, 1979

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

Establishment report : permanent mountain pine beetle population trend plots, Montana, 1979

R-1 forest insect and disease damage survey system

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

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

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