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Douglas-fir tussock moth in northern Idaho and western Montana : current activity and historical patterns

Creator:: Sturdevant, Nancy J., United States. Forest Health Protection, and United States. Forest Service. Northern Region
Abstract:: The objective of this report is to describe the current increase in Douglas-fir tussock moth (Orgyia pseudotsugata McDunnough) activity in northern Idaho and Montana. The report also relates current conditions to historical and future trends and larger scale increasing tussock moth activity in surrounding western states.
Resource Type:: Technical Report
Full Text:: Douglas-fir tussock moth (Orgyia pseudotsugata McDunnough) activity in northern Idaho and Montana. The

Natural mortality in a Douglas-fir tussock moth infestation in Idaho, 1974

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:: -FIR TUSSOCK MOTH INFESTATION IN NORTHERN IDAHO - 1974. By 0282917 1/ 2/ Scott Tunnock, M.D

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:: DOUGLAS-FIR TUSSOCK MOTH DEFOLIATION POTENTIAL IN NORTHERN IDAHO by Scott Tunnockli , R. L

Potential Douglas-fir tussock moth damage in northern Idaho in 1974 based on a 1973 fall egg mass survey

Creator:: Tunnock, Scott and Livingston, R. Ladd
Abstract:: An epidemic of Douglas-fir tussock moth was detected in northern Idaho in 1972. In 1973, aerial surveys showed that nearly 100,000 acres contained various degrees of visible defoliation. An egg mass survey of five reporting units made in the fall of 1973 determined potential for damage in 1974. Based on...
Resource Type:: Technical Report
Full Text:: DOUGLAS-FIR TUSSOCK MOTH DAMAGE IN NORTHERN IDAHO IN 1974 BASED ON A 1973 FALL EGG MASS SURVEY

Status of Douglas-fir tussock moth infestations in the northern region, 1973

Creator:: Tunnock, Scott and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: , 1973. Biological evaluation of existing Douglas-fir tussock moth populations in Northern Idaho to

Detection survey for Douglas-fir tussock moth infestations in the northern region, 1972

Creator:: Tunnock, Scott and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: The last outbreak of the Douglas-fir tussock moth, Hemerocampa pseudotsugata McD., in the Northern Region subsided in 1965. Tussock moth populations were not detected again until 1970 when ornamental spruce were defoliated in Spokane, Washington, and Poison and Missoula, Montana.
Resource Type:: Technical Report
Full Text:: -8 5220 October 1972 DETECTION SURVEY FOR DOUGLAS-FIR TUSSOCK MOTH INFESTATIONS IN THE

A demonstration for hazard rating susceptibility of stands to Douglas-fir tussock moth defoliation on the Palouse Ranger District, 1. Probability of defoliation

Creator:: Kessler, Bruce L., Heller, Robert C., and Hard, John S.
Abstract:: A practical demonstration of a method for rating forest stands as to their probability of defoliation by the Douglas-fir tussock moth using aerial photographs and available cruise data was done in the Palouse Ranger District, Clearwater National Forest, Idaho. A nonlinear computer program, RISK, was used to identify significant independent...
Resource Type:: Technical Report
Full Text:: Douglas-fir tussock moth sites. Masters thesis, University of Idaho. 48 pp. Stage, A. R. 1975. An

Observations of impact on the Nezperce National Forest caused by the Douglas-fir tussock moth

Creator:: Bousfield, Wayne E., Ward, James D., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: OBSERVATIONS OF IMPACT ON THE NEZPERCE NATIONAL FOREST CAUSED BY THE DOUGLAS-FIR TUSSOCK MOTH By Wayne E

Douglas-fir tussock moth adult male survey north Idaho and western Montana, 1982

Creator:: Dewey, Jerald E., Livingston, R. Ladd, Kohler, Steve, and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management
Abstract:: Douglas-fir tussock moth populations are monitored annually in northern Idaho and western Montana to insure early detection of changes from endemic to outbreak population levels. Adult moth trapping in 1982 was intensified and expanded into additional areas from 1981 because of concern that with each passing year the probability of...
Resource Type:: Technical Report
Full Text:: . Douglas-fir tussock moth adult male survey north Idaho and western Montana, 1981. USDA For. Ser., Northern

Douglas-fir tussock moth biological evaluation, Palouse Ranger District, Clearwater National Forest, 2001

Creator:: Randall, Carol and United States. Forest Service. Northern Region
Resource Type:: Technical Report
Full Text:: Inn, Moscow Idaho. November 6-8, 2001. Randall, Carol. 2001. Douglas-fir tussock moth biological

Douglas-fir tussock moth biological evaluation, Palouse Ranger District, Clearwater National Forest-2000

Creator:: Randall, Carol, United States. Forest Health Protection, United States. Forest Service. Palouse Ranger District, and United States. Forest Service. Northern Region
Resource Type:: Technical Report
Full Text:: Douglas-fir tussock moth have been recorded in northern Idaho for over 50 years. At least four of these

Application of predictive model to forecast Douglas-fir tussock moth defoliation

Creator:: Bousfield, Wayne E., Livingston, R. Ladd, and United States. Forest Service. Northern Region
Resource Type:: Technical Report
Full Text:: Douglas-fir tussock moth defoliation to site and stand characteristics in northern Idaho. Forest Sci. 27(3

Damage caused by the Douglas-fir tussock moth on portions of the Nezperce National Forest, 1977

Creator:: Bousfield, Wayne E., Oakes, Robert D., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: 19 78 DAMAGE CAUSED BY THE DOUGLAS-FIR TUSSOCK MOTH ON PORTIONS OF THE NEZPERCE NATIONAL FOREST

Douglas-fir tussock moth population surveys, northern Idaho and western Montana, 1983 and 1984

Creator:: Dewey, Jerald E., Livingston, R. Ladd, Kohler, Steve, and United States. Forest Service. Northern Region
Resource Type:: Technical Report
Full Text:: 85-10 April 1985 DOUGLAS-FIR TUSSOCK MOTH POPULATION SURVEYS NORTHERN IDAHO AND WESTERN MONTANA

A pilot project to evaluate efficacy of aerially applied nucleopolyhedrosis virus on Douglas-fir tussock moth in Northern Idaho, 1985 : progress report

Creator:: Stipe, Lawrence E., Gibson, Kenneth E., Livingston, R. Ladd, and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: AERIALLY APPLIED NUCLEOPOLYHEDROSIS VIRUS ON DOUGLAS-FIR TUSSOCK MOTH • IN NORTHERN IDAHO 1985 • by

Potential for defoliation by Douglas-fir tussock moth in western Montana in 1974

Creator:: Tunnock, Scott, Kohler, Steve, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: In 1973, two centers of defoliation by Douglas-fir tussock moth totaling 350 acres were detected near Missoula, Montana. Egg mass surveys showed two sections south of Frenchtown and one section northwest of Lolo 41, contain sufficient egg mass population to cause heavy defoliation in 1974.
Resource Type:: Technical Report
Full Text:: . 74-2 January 1974 POTENTIAL FOR DEFOLIATION BY DOUGLAS-FIR TUSSOCK MOTH IN WESTERN MONTANA IN

Impact of egg viability, egg parasitism, and virus on 1974 Douglas-fir tussock moth defoliation potential in western Montana

Creator:: Tunnock, Scott and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Douglas-fir tussock moth egg mass studies during winter 1974 indicate that natural factors such as low egg viability, egg parasitism, and virus do not alter the potential for heavy defoliation in two sections south of Frenchtown and one section northwest of Lolo, Montana.
Resource Type:: Technical Report
Full Text:: No. 74-11 IMPACT OF EGG VIABILITY, EGG PARASITISM, AND VIRUS ON 1974 DOUGLAS-FIR TUSSOCK MOTH

History of Douglas-fir tussock moth and related suppression efforts in the Intermountain and Northern Rocky Mountain regions, 1927 through 1984

Creator:: Tunnock, Scott, Ollieu, Max Marius, and Thier, R. W.
Resource Type:: Technical Report
Full Text:: TABLE 1 Summary of outbreaks of Douglas-fir tussock moth in Nevada, Idaho, and Montana, 1927 through

Evaluation of a Douglas-fir tussock moth outbreak in the lower Flathead Valley, Montana

Creator:: Tunnock, Scott and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: An aerial survey during 1974 revealed approximately 5,000 acres of various degrees of Douglas-fir tussock moth, Orgyia pseudotsugata McD., defoliation in the lower Flathead Valley. An egg mass survey was made in September to determine the potential for damage in 1975. Based on new egg mass densities, significant defoliation may...
Resource Type:: Technical Report
Full Text:: / 5200 October 19744441 q Report No. 74-24 A3 A44,7 cr—.)- EVALUATION OF A DOUGLAS-FIR TUSSOCK MOTH

Guidelines for implementing direct control tactics against the Douglas-fir tussock moth

Creator:: Dewey, Jerald E. and United States. Forest Service. Northern Region
Resource Type:: Technical Report
Full Text:: THE DOUGLAS-FIR TUSSOCK MOTH • • by Jerald E. Dewey, Supervisory Entomologist When the EPA gave

Supplemental egg mass data from a Douglas-fir tussock moth infestation, North of Polson, Montana, April 1975

Creator:: Tunnock, Scott, Ciesla, William M., Haglund, Steve, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: A supplemental Douglas-fir tussock moth egg mass evaluation was made within three quarter sections north of Poison, Montana, during April 1975. These areas were being considered for a pilot control project of a nucleopolyhedrosis virus spray. Results from the April evaluation showed these areas no longer qualified as sites for...
Resource Type:: Technical Report
Full Text:: supplemental Douglas-fir tussock moth egg mass evaluation was made within three quarter sections north of

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:: proposed suppression project against the Douglas-fir tussock moth in northern Idaho, more than 1,000 larvae

The Douglas-fir tussock moth in the Northern Region : a cartographic history of outbreaks from 1928 to 1973

Creator:: Tunnock, Scott
Abstract:: The Douglas-fir tussock moth, Orgyia pseudotsugata McD., periodically defoliates Douglas-fir, true firs, and other host trees in forests of the western United States. In the Northern Region, these infestations occur about once every decade. This history covers the earliest recorded outbreak in northeastern Washington from 1928 to 1930 and includes...
Resource Type:: Technical Report
Full Text:: Washington and northern Idaho, 1950-1955.--The Douglas-fir tussock moth was reported in scattered areas of

Impact of egg viability, egg parasitism, and virus on 1975 Douglas-fir tussock moth defoliation potential in the lower Flathead Valley, Montana

Creator:: Tunnock, Scott and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Evaluation of Douglas-fir tussock moth, Orgyia pseudotsugata, egg masses collected from an outbreak area in the lower Flathead Valley indicated that overall egg viability was relatively high, egg parasitism was low, and virus infestation averaged 7.1 percent northwest of Polson, 17.9 percent south of St. Ignatius, and 57.0 percent west...
Resource Type:: Technical Report
Full Text:: ON POTENTIAL 5200 April 1975 OF EGG VIABILITY, EGG PARASITISM, 1975 DOUGLAS-FIR TUSSOCK MOTH

ScholarsArchive@OSU

Douglas-fir tussock moth in northern Idaho and western Montana : current activity and historical patterns

Natural mortality in a Douglas-fir tussock moth infestation in Idaho, 1974

Impact of egg viability, egg parasitism, and virus on 1974 Douglas-fir tussock moth defoliation potential in northern Idaho

Potential Douglas-fir tussock moth damage in northern Idaho in 1974 based on a 1973 fall egg mass survey

Status of Douglas-fir tussock moth infestations in the northern region, 1973

Detection survey for Douglas-fir tussock moth infestations in the northern region, 1972

A demonstration for hazard rating susceptibility of stands to Douglas-fir tussock moth defoliation on the Palouse Ranger District, 1. Probability of defoliation

Observations of impact on the Nezperce National Forest caused by the Douglas-fir tussock moth

Douglas-fir tussock moth adult male survey north Idaho and western Montana, 1982

Douglas-fir tussock moth biological evaluation, Palouse Ranger District, Clearwater National Forest, 2001

Douglas-fir tussock moth biological evaluation, Palouse Ranger District, Clearwater National Forest-2000

Application of predictive model to forecast Douglas-fir tussock moth defoliation

Damage caused by the Douglas-fir tussock moth on portions of the Nezperce National Forest, 1977

Douglas-fir tussock moth population surveys, northern Idaho and western Montana, 1983 and 1984

A pilot project to evaluate efficacy of aerially applied nucleopolyhedrosis virus on Douglas-fir tussock moth in Northern Idaho, 1985 : progress report

Potential for defoliation by Douglas-fir tussock moth in western Montana in 1974

Impact of egg viability, egg parasitism, and virus on 1974 Douglas-fir tussock moth defoliation potential in western Montana

History of Douglas-fir tussock moth and related suppression efforts in the Intermountain and Northern Rocky Mountain regions, 1927 through 1984

Evaluation of a Douglas-fir tussock moth outbreak in the lower Flathead Valley, Montana

Guidelines for implementing direct control tactics against the Douglas-fir tussock moth

Supplemental egg mass data from a Douglas-fir tussock moth infestation, North of Polson, Montana, April 1975

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

The Douglas-fir tussock moth in the Northern Region : a cartographic history of outbreaks from 1928 to 1973

Impact of egg viability, egg parasitism, and virus on 1975 Douglas-fir tussock moth defoliation potential in the lower Flathead Valley, Montana

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