Index Catalog // ScholarsArchive@OSU

Creator:: Dewey, Jerald E., Livingston, R. Ladd, Kohler, Steve, and Sartwell, Charles
Abstract:: A synthetic pheromone of the western pine shoot borer, Eucosma sonomana Kearfott, has been used successfully as a 'mating disrupter in northern Idaho and western Montana since 1984. Infestation levels in treated ponderosa pine plantations declined from an average of 28 percent infested in 1983 to 5.5 percent by 1986....
Resource Type:: Technical 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

Creator:: Bousfield, Wayne E., Livingston, R. Ladd, and United States. Forest Service. Northern Region
Resource Type:: Technical Report

Creator:: Dewey, Jerald E., Livingston, R. Ladd, Kohler, Steve, and United States. Forest Service. Northern Region
Resource Type:: Technical Report

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

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

Creator:: Tunnock, Scott, Livingston, R. Ladd, Bousfield, Wayne E., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report

Creator:: Meyer, Hubert E., Livingston, R. Ladd, and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: The western hemlock looper, Lambdina fiscellaria Zugubrosa Hulst, caused, aerially visible defoliation on approximately 10,000 acres of State, private, and Federal forests of northern Idaho in 1972. This is the first report of noticeable defoliation by this insect in Region 1 since the late 1930's (Dewey et al. 1972).
Resource Type:: Technical Report

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