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Filtering by: Publisher Missoula, Mont. : USDA, Forest Service, Northern Region, Division of State & Private Forestry Remove constraint Publisher: Missoula, Mont. : USDA, Forest Service, Northern Region, Division of State & Private Forestry Creator Bousfield, Wayne E. Remove constraint Creator: Bousfield, Wayne E.

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Distribution of larch casebearer parasites in the crowns of western larch trees in the northern region

Creator:

United States. Forest Service. Northern Region. State & Private Forestry, Tunnock, Scott, McGregor, Mark D., and Bousfield, Wayne E.

Abstract:

A study was made to determine the distribution of parasites of the larch casebearer, Coleophora laricelia, within crowns of western larch, Larix occidentalis. The most common parasites recovered in order of their abundance, were: Agathis pumila (Ratz.), Diciadocerus sp. near westwoodii, Spilochalcis albifrons (Walsh), and MesopoZobus sp. Parasitism by A....

Resource Type:

Technical Report

Full Text:

of State and Private Forestry Northern Region Missoula. Montana 5200 • MARCH 1972
Establishment and distribution of the larch casebearer parasite, Agathis pumila in Idaho, Montana, Washington, Oregon and British Columbia

Creator:

Bousfield, Wayne E.

Resource Type:

Technical Report

Full Text:

Columbia USDA - FOREST SERVICE- NORTHERN REGION Division of State and Private Forestry Missoula, Mt
Evaluation of forest insect conditions on the National Bison Range, Moiese, Montana

Creator:

Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

An evaluation of forest insect conditions on the National Bison Range at Moiese, Montana, was made on August 28, 1972.

Resource Type:

Technical Report

Full Text:

1972 level in 1973. tit • DIVISION OF STATE & PRIVATE FORESTRY MISSOULA, MONTANA ENTRANCE ROAD
Evaluation of the Douglas-fir beetle infestation in the North Fork Clearwater River drainage, Idaho--1972

Creator:

McGregor, Mark D., Bousfield, Wayne E., and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

The Douglas-fir beetle, Dendroctonus pseudotsugae Hopk., has caused extensive tree mortality for the third consecutive year in the North Fork Clearwater River drainage in northern Idaho. In 1972, the infestation encompassed about 494,080 acres of commercial forest lands in this drainage. It was estimated from a tw-stage aerial photo-ground survey...

Resource Type:

Technical Report

Full Text:

trees. 1/ Entomologists, USDA, Forest Service, Region 1, Division of State and Private Forestry
Impact of egg viability, egg parasitism, and virus on 1974 Douglas-fir tussock moth defoliation potential in northern Idaho

Creator:

Tunnock, Scott, Livingston, R. Ladd, Bousfield, Wayne E., and United States. Forest Service. Northern Region. State & Private Forestry

Resource Type:

Technical Report

Full Text:

Service, Division of State and Private Forestry, Missoula, Montana. 2/ Entomologist, State of Idaho
Mountain pine beetle impact survey on the Ninemile District, Lolo National Forest, and surrounding state and private lands

Creator:

Bousfield, Wayne E., McGregor, Mark D., Kohler, Steve, and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

The mountain pine beetle, Dendroetonus ponderosae Hopk., has been at epidemic levels in second-growth ponderosa pine stands in the Ninemile area of the Lolo National Forest and surrounding private lands since 1969. An impact survey, using two levels of photography and a small ground sample, was conducted to estimate a...

Resource Type:

Technical Report

Full Text:

Private Forestry, USDA Forest Service, Missoula, Montana. 2/ Entomologist, Department of Natural
Observations on the impact of western spruce budworm on the Nezperce National Forest, Idaho, 1972

Creator:

Ciesla, William M., Lood, Rudolph C., Bousfield, Wayne E., and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

Aerial surveys of the Nezperce National Forest in Idaho revealed 138,692 acres of aerially visible top kill and tree mortality due to repeated defoliation by western spruce budworm, Choristoneura occidentalis Freeman. A small ground sample indicates that up to 47 percent of the grand fir volume was affected by top...

Resource Type:

Technical Report

Full Text:

PrivateForestry, Missoula, Montana. 2/ Biological Technician (Insects), USDA, Forest Service, Division of State
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:

. Service, Region 1, . S&PF, USDA Forest Flathead Indian • DIVISION OF STATE & PRIVATE FORESTRY
Potential for defoliation of ponderosa pine stands by pine butterfly on the Bitterroot and Lolo National Forests, Montana in 1972

Creator:

Bousfield, Wayne E., Meyer, Hubert E., and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

Epidemic levels of the pine butterfly, Neophasia menapia (Felder and Felder) have been evident in ponderosa pine stands in the Bitter Root Valley since 1969. Evaluations of this infestation were initiated in 1970 to assess overwintering egg populations at 20 locations within the infestation (Ciesla et al. 1971). Defoliation was...

Resource Type:

Technical Report

Full Text:

, Montana, 1971. USDA, Forest Serv., Northern Reg., Div. of State and Private Forestry. Report No. 71-2
Potential for larch casebearer defoliation in the Northern Region, 1972

Creator:

Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry

Abstract:

The larch casebearer Coleophora laricella (Hbn.) is now established throughout all western larch stands in Region 1. Population levels have begun to fluctuate in some of the older infested stands; however, it is still on the increase in more recently invaded territory. During the past 2 years work was begun...

Resource Type:

Technical Report

Full Text:

of western larch by the larch casebearer in the Northern Region--1971. USDA, Forest Service, Division

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Creator

Bousfield, Wayne E.[remove]12
United States. Forest Service. Northern Region. State & Private Forestry11
Mcgregor, Mark D.4
Tunnock, Scott2
Carlson, Clinton E.1
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Date

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Current results range from 1972 to 1974

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1970-197912

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application/pdf12

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English [eng]12

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Technical Report12

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Copyright Not Evaluated12

Subject

Braconidae -- Northwest, Pacific1
Braconidae -- Northwestern States -- Geographical distribution1
Chalcid wasps -- Northwest, Pacific1
Conifers -- Diseases and pests -- Idaho -- Nezperce National Forest1
Conifers -- Effect of fluorides on -- Montana1
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