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Creator:: Hagle, Susan K. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Two thousand and thirty-nine trees on 213 plots are being monitored yearly for root disease infection and mortality. Three compartments on the Fernan Ranger District of the Idaho Panhandle National Forests are the site of the project. Relationships between factors such as species, aspect, slope, elevation, habitat type, stand appearance...
Resource Type:: Technical Report
Full Text:: yearly for root disease infection and mortality. Three compartments on the Fernan Ranger District of the

Creator:: Dooling, Oscar J., Kohler, Steve, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Shade tree insect and disease activity within the city limits of Bozeman, Montana, were evaluated. Other than a few minor insects, the park, cemetery, and street trees are in remarkably good condition. Both the Park Department and private homeowners appreciate the value of trees in the urban environment. Recommendations on...
Resource Type:: Technical Report
Full Text:: Steve Kohler 2/ SUMMARY Shade tree insect and disease activity within the city limits of Bozeman

Creator:: McGregor, Mark D., Gibson, Kenneth E., Bennett, D. D., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: trees larger than 6 inches dbh. There was no apparent association between root disease and bark beetle

Creator:: Williams, Ralph E. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: The benomyl fungicide, rersan, applied at 7 and 14 pounds active ingredient per acre, on April 26 and July 25, 1973, was ineffective in reducing mortality in 2-0 Engelmann spruce seedlings derived from two different seed sources growing in three different nursery sections at the USFS Coeur d'Alene Nursery. Percent...
Resource Type:: Technical Report
Full Text:: spp. in dead seedlings, and disease expression increased with increasing summer temperatures

Creator:: Dooling, Oscar J., Eder, Robert G., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Dwarf mistletoes reduce tree height and diameter, and thereby cause a reduction in volume production. We estimate that volume reduction in Montana is about 33.2 MM cubic feet per year. Mistletoe effects are problems in some areas because of the demands we have placed on the Forests for goods and...
Resource Type:: Technical Report
Full Text:: considers information on the stands, pest-caused losses, and environmental and social considerations in

Creator:: James, Robert L. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Three stands along Benton Creek within the Priest River Experimental Forest, Idaho, were surveyed for diseases using previously established timber inventory plots and sample trees. These surveys provided information to aid in formation of silvicultural prescriptions by CEFES (Continuing Education in Forest Ecology and Silviculture) students. Diseases were quantified at...
Resource Type:: Technical Report
Full Text:: Region's Insect and Disease Damage Survey System (INDIDS). The evaluation showed that about 10 percent of

Creator:: James, Robert L., Dewey, Jerald E., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: ...., April 1981 J SUMMARY OF FOREST INSECT AND DISEASE CONDITIONS IN THE NORTHERN REGION - 1980

Creator:: Tunnock, Scott, Flavell, Thomas H., Meyer, Hubert E., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Aerial surveys of six Montana National Forests in 1975 found a 22.1% increase in the area of visible defoliation caused by the western spruce budworm. It is estimated that 2,278,804 acres of Douglas-fir forests are now suffering at least 25% defoliation. This is an increase of 503,706 acres over the...
Resource Type:: Technical Report
Full Text:: , Missoula, Mont., Report 72-1. Hamel, D. R., and O. J. Dooling, 1975. Forest insect and disease con

Creator:: Tunnock, Scott, McGregor, Mark D., Lood, Rudolph C., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Mortality from various causes was recorded in a Douglas-fir tussock moth, Orgyia pseudotsugata McD., outbreak southeast of Coeur d'Alene, Idaho, in 1974. Observations began June 27 when about 50 percent of the larvae were second instars and continued until pupation. Within a 35-day period, there was a 93 percent average...
Resource Type:: Technical Report
Full Text:: 1935 to 1965. Each outbreak collapsed at the end of 3 years and a virus disease appeared to be the

Creator:: Tunnock, Scott, United States. Forest Service. Northern Region. Forest Environmental Protection, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Aerially visible defoliation by the western spruce budworm, Choristoneura occidentalis Freeman, increased from 149,250 acres in 1973 to 649,319 acres in 1974 on five eastern Montana National Forests. An egg mass survey during the fall of 1974 predicted that additional defoliation will occur in 1975 on 47 of 48 plots...
Resource Type:: Technical Report
Full Text:: J.E. Dewey, 1973. Forest Insect and Disease Conditions, Northern Region, 1972. USDA, Forest Service

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