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Creator:: James, Robert L., Dewey, Jerald E., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: northern Idaho and northwestern Montana; however, increased activity occurred in west-central Montana. A

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 State and Private • Forestry. Report 71-2. • 0 2/ Ciesla, W. M., and W. E. Bousfield. 1971

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:: predicted from Mineral Mountain along Skyline Drive to McCroskey State Park. The largest area of defoliation

Creator:: Bousfield, Wayne E.
Resource Type:: Technical Report
Full Text:: Columbia USDA - FOREST SERVICE- NORTHERN REGION Division of State and Private Forestry Missoula, Mt

Creator:: Dooling, Oscar J. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Dwarf mistletoes exert an impact on forest productivity, but this impact can be reduced through management practices. Even infested stands can yield considerable volumes if proper control methods are used. Projections of future yield increases due to control efforts are made. Cost of treatment in fiscal year 1973 was $51...
Resource Type:: Technical Report
Full Text:: ENVIRONMENTAL PROTECTION USDA - FOREST SERVICE-. NORTHERN REGION State and Private Forestry Missoula, Mt. 59801

Creator:: Byler, James W., James, Robert L., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Two methods attempting to stop marginal spread of a root disease center in Douglas-fir were evaluated within the Flathead Indian Reservation, Montana. The first method was to cut all living trees within a 1-chain strip outside the edge of the infestation. The second method was to uproot all trees for...
Resource Type:: Technical Report
Full Text:: . . • United States Forest Northern State & • Department of Service Region Private Agriculture Forestry

Creator:: James, Robert L., Stewart, C. A., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: An impact survey to determine extent and distribution of root disease centers was completed for the Nezperce National Forest, Idaho, in 1980. Lowlevel color infrared photography was used to delineate root disease centers within National Forest inventory subcompartments. Suspected root disease centers were ground checked to determine associated fungi and...
Resource Type:: Technical Report
Full Text:: Reservation, Montana. USDA-For. Serv., State and Priv. For., Northern Region. (In preparation.) 0 3. Childs

Creator:: James, Robert L., United States. Forest Service. Northern Region, and United States. Forest Pest Management
Abstract:: Investigations of containerized western white pine, western larch, and Douglas-fir seedlings at the Western Forest Systems Nursery in Lewiston, Idaho, revealed that many seedlings were colonized with Fusarium oxysporum although they lacked severe disease symptoms. White pine seedlings were also infected with Pythium spp., probably as a result of sowing...
Resource Type:: Technical Report
Full Text:: . Marasas. 1983. Fusarium species: an illustrated manual for identification. The Pennsylvania State

Creator:: James, Robert L., Gilligan, Carma J., and United States. Forest Service. Northern Region
Abstract:: Mortality of western white pine transplants used to assess resistance to blister rust at the USDA Forest Service Nursery in Coeur d'Alene, Idaho was likely due to extensive root infection by Pythiva app. Severity of foliar symptom production was significantly correlated with extent of root system colonization by these fungi....
Resource Type:: Technical Report
Full Text:: identification. Pennsylvania State University Press, University Park, 193 p. Vaartaja, 0. 1967. Reinfestation of

Creator:: James, Robert L., Byler, James W., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: A root disease evaluation was completed for the Ducharme logging unit near the southeast corner of Flathead Lake. Extensive root disease was found on Douglas-fir throughout the unit. The major pathogen on the site was Armillaria meilea. Black stain (Verticicladiella sp.) was isolated from one tree which was also infected...
Resource Type:: Technical Report
Full Text:: Region State & Private Forestry P.O.Box 7669 Missoula, Montana 59807 tly • 0 • I • root

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