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Creator:: Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: The pine butterfly, Neophasia menapia Feld., has been at epidemic levels in the Bitterroot and Missoula valleys for the past 2 years (Ciesla et al. 1971) (Bousfield and Meyer 1972). Several reports of conspicuous pine butterfly flights on the Flathead Indian Reservation prompted an evaluation of the potential for pine...
Resource Type:: Technical Report
Full Text:: 1972Report No. 1-72-9 • ON THE FLATHEAD INDIAN RESERVATION IN 1973 by Wayne Bousfield, Entomologist Forest

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:: February 1972 POTENTIAL FOR LARCH CASEBEARER DEFOLIATION IN THE NORTHERN REGION -- 1972 by Wayne E

Creator:: Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: FOREST INSECT AND DISEASE DAMAGE SURVEY SYSTEM By Wayne E. Bousfield, Entomologist INTRODUCTION

Creator:: Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: S D/ c1 M/ PRONG aiNDER A 3 FORES /14' • INSECT E. DI EASE

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:: National Forest. S S 7. - J 0 •(.) ,▪ • w, yr Z •c trr W. M. Ciesla1-/ , R. C. Lood2-/ , and W

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:: NORTH FORK CLEARWATER RIVER DRAINAGE, IDAHO--1972 by M. D. McGregor, W. E. Bousfieldli, and Dewey

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:: 1.68 + 0.79 26 34 • • -5- • • • w REFERENCES CITED It Bousfield, W. E., and W. M. Ciesla

Creator:: Bousfield, Wayne E., Williams, Ralph E., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: No. 77-3 IMPACT OF SPRUCE BUDWORM ON THE NEZPERCE NATIONAL FOREST, IDAHO, 1976 by Wayne E

Creator:: Bennett, D. D., Bousfield, Wayne E., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: A multistage sampling survey to measure annual and cumulative mortality of lodgepole pine by mountain pine beetle was conducted on the Beaverhead and Gallatin National Forests, 1978-79. The survey area, 270,000 acres, was stratified into three intensity classes from aerial sketchmapping. This was followed by large scale (1:6,000) aerial photography,...
Resource Type:: Technical Report
Full Text:: • • by Dayle D. Bennett • Biological Technician and Wayne E. Bousfield Impact Evaluation Specialist

Creator:: Bousfield, Wayne E., Underwood, P. W., Lood, Rudolph C., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
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