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Filtering by: Subject Dam retirement--United States Remove constraint Subject: Dam retirement--United States Subject Report (United States. Forest Service. Northern Region. Forest Pest Management) Remove constraint Subject: Report (United States. Forest Service. Northern Region. Forest Pest Management)

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Mortality factors associated with laboratory reared Douglas-fir tussock moth larvae : a case study

Creator:

Gast, Sandy, Gibson, Kenneth E., and United States. Forest Service. Northern Region

Abstract:

In conjunction with a proposed suppression project against the Douglas-fir tussock moth in northern Idaho, more than 1,000 larvae were collected from sample plots throughout the 32,000-acre treatment area. We had hoped to determine naturally occurring mortality factors which may have contributed to lower than anticipated population levels. Reared on...

Resource Type:

Technical Report

Full Text:

block we located 10 three-tree sample clusters. 0 •• United States • Department of Agriculture
Analysis of the human health risk of herbicide application projects for noxious weed and poisonous plant control in the Northern Region

Creator:

Monnig, Edward C. and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management

Resource Type:

Technical Report

Full Text:

united States no. 3-7"&pepartment • of Agriculture Forest Service Northern Region.o Analysis of the
Mountain pine beetle infestation in ponderosa pine on Crow/Northern Cheyenne Indian Reservations, Montana, 1984

Creator:

Gibson, Kenneth E., McGregor, Mark D., Oakes, Robert D., and United States. Forest Service. Northern Region

Abstract:

The mountain pine beetle infestation existing on the Crow Indian Reservation (IR) since the early 1970's, and later developing principally in the western portion of the Northern Cheyenne IR, continued into 1984. Survey results indicate the infestation is still building on both Reservations. To help develop beetle management strategies appropriate...

Resource Type:

Technical Report

Full Text:

• • • • • • • 410 United States Forest Northern
Evaluation of Douglas-fir mortality from Douglas-fir beetle from 1982 through 1984 following MCH application

Creator:

McGregor, Mark D., Oakes, Robert D., Meyer, Hubert E., and United States. Forest Service. Northern Region

Abstract:

A granular controlled release formulation of 2 percent MCH was applied at 4.48 kg/ha to 76.9 ha of uninfested, windthrown Douglas-fir by helicopter with a modified aerial spreader of 1.12 m capacity in May 1982. Douglas-fir beetle population reduction was 96.4 percent by late June. With one exception, treated plots...

Resource Type:

Technical Report

Full Text:

western United States, British Columbia, and Mexico. During endemic conditions, infestation by low
Permanent mountain pine beetle population trend plots : an update, 1981

Creator:

Gibson, Kenneth E. and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

Six Montana areas in which permanent mountain pine beetle trend plots were established in 1979 were revisited in 1980. Results of the visit show infestation intensity decreased significantly in Centennial Valley, decreased slightly in the Madison River plot area, and increased almost threefold in the Murr Creek area. Beetle populations...

Resource Type:

Technical Report

Full Text:

readily apparent. Though the lodgepole component of the United States Forest Northern State
Evaluation of a hemlock sawfly outbreak in the northern tip of Idaho, 1985

Creator:

Tunnock, Scott and United States. Forest Service. Northern Region

Abstract:

A rare outbreak of hemlock sawfly, Neodiprion tsugae Middleton, was detected in August in drainages near the Canadian border in Idaho infesting several thousand acres. Some stands of western hemlock and subalpine fir were severely defoliated. Understory Engelmann spruce trees were lightly defoliated. The sawfly overwinters in the egg stage...

Resource Type:

Technical Report

Full Text:

, Montana 59807 United States Department of Agriculture • • • • • Past spruce beetle outbreaks
Epidemiology of Fusarium on containerized Douglas-fir seedlings. I, Seed and seedling infection, symptom production, and disease progression

Creator:

James, Robert L., United States. Forest Service. Northern Region, and United States. Forest Pest Management

Abstract:

Investigations were conducted to understand the epidemiology of Fusarium on containerized Douglas-fir seedlings. Types and importance of Fusarium inoculum sources, relationships between seedling infection and symptom production, amounts and types of diseases that occurred throughout typical growth cycles, and the importance of secondary pathogen spread were investigated. Levels of Fusarium...

Resource Type:

Technical Report

Full Text:

. United States Department of Agriculture Forest Service Northern Region P.O. Box 7669 Missoula, Montana
An evaluation of fungicides to control Diplodia tip blight at the Fantasy Farms Nursery, Peck, Idaho

Creator:

James, Robert L., Schwandt, John W., Woo, John You, and United States. Forest Service. Northern Region

Abstract:

Benomyl and chlorothalonil were tested on 2-0 bareroot ponderosa pine seedlings as a means to reduce impact of Diplodia tip blight at the Fantasy Farms Nursery, Peck, Idaho. Infection levels were not adequate to assess effectiveness of the fungicides. However, techniques were developed which can be used to assess efficacy...

Resource Type:

Technical Report

Full Text:

sporulating profusely on the cone scales from these trees. This fungus • • • United StatesDepartment of
Pathogenicity of Alternaria alternata on young Douglas-fir and Engelmann spruce germlings

Creator:

James, Robert L., Woo, John You, and United States. Forest Service. Northern Region

Resource Type:

Technical Report

Full Text:

, Intermountain Forest REsearch Station, Moscow, ID. • United States Forest Northern P.O. Box 7669
Western spruce budworm 1/ control project on the Big Timber Ranger District, Gallatin National Forest, Montana

Creator:

Bousfield, Wayne E., Cifala, Frank, Kracht, Richard, and United States. Forest Service. Northern Region

Abstract:

The microbial insecticide, Bacillus thuringensis (Bt), was applied from fixed-wing aircraft to approximately 700 acres of western spruce budworm host type at the rate of 12 billion international units (BIU's) per gallon of water per acre. The objective of this control project was foliage protection to insure future cone production...

Resource Type:

Technical Report

Full Text:

Forest, Montana 4/ Silviculturiet, Gallatin National Forest, Bozeman, MT United States • Department of

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Creator

United States. Forest Service. Northern Region35
James, Robert L.20
United States. Forest Service. Northern Region. State & Private Forestry16
Gibson, Kenneth E.11
Bousfield, Wayne E.6
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Date

Date range begin – Date range end

Current results range from 1981 to 1988

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Decade

1980-198954

File Format

application/pdf54

Language

English [eng]54

Resource Type

Technical Report54

Rights Statement

Copyright Not Evaluated54

Subject

Report (United States. Forest Service. Northern Region. Forest Pest Management)[remove]54
Conifers -- Diseases and pests -- Idaho4
Mountain pine beetle -- Montana4
Conifers -- Diseases and pests -- Montana3
Douglas fir -- Diseases and pests3
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