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Impact of Armillaria and annosus root diseases on stand and canopy structure, species diversity, and down woody material in a central Oregon mixed-conifer forest

Creator:: Fields, Kristen L. N.
Abstract:: White and grand fir are both valuable components of the mixed-conifer stand structure managed for late-successional reserves in central Oregon. However, they are often short-lived species because of high susceptibility to root diseases, defoliating insects, bark beetles, and wildfire. This study focuses on the effects of root diseases caused by...
Resource Type:: Masters Thesis
Full Text:: a Central Oregon Mixed-Conifer Forest Abstract approved: Gregory M. Filip White and grand fir are

Establishment report : permanent plots to evaluate the effects of Armillaria root disease in precommercially thinned stands

Creator:: Byler, James W., Stewart, C. A., Hall, L. D., and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Methods used to establish permanent plots in precommercially thinned and unthinned stands to monitor root disease development are described. Plots were established in 22 Armillaria-infested stands in northern Idaho and western Montana. The proportion of trees dead and infected was significantly higher for planted than for natural regeneration at the...
Resource Type:: Technical Report
Full Text:: ), Oregon and Washington (Filip 1977, Shaw & Roth 1978), and British Columbia (Morrison 1981). Root disease

Evaluation of root diseases of containerized conifer seedlings at the Champion Timberlands Nursery, Plains, Montana

Creator:: James, Robert L., Gilligan, Carma J., Reedy, V., and United States. Forest Service. Northern Region
Abstract:: Investigations of containerized conifer seedling root diseases at the Champion Timberlands Nursery revealed that Fusarium oxysporum was most commonly isolated from seed, seedling roots, and styroblock containers. Amount of seed infection varied widely among the seedlots tested, but was usually below 5 percent. Runningwater rinses did not reduce amounts of...
Resource Type:: Technical Report
Full Text:: plague containerized conifer seedling production is root disease caused by Fusarium spp. (James 1984a

Root disease of containerized conifer seedlings, Western Forest Systems Nursery, Lewiston, Idaho

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:: , Idaho, root diseases of containerized conifer seedlings occur periodically in most crops, but losses

Conifer root diseases on the Kootenai National Forest, Montana

Creator:: James, Robert L., Stewart, C. A., and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management
Abstract:: A survey for incidence and distribution of root diseases was conducted on the Kootenai National Forest using timber inventory subcompartments as primary sample units. Root diseases were located within 23 of 75 sampled subcompartments. At least 1.1 percent of the commercial forest lands within the Forest are infested with root...
Resource Type:: Technical Report
Full Text:: • CONIFER ROOT DISEASES ON THE KOOTENAI NATIONAL FOREST, MONTANA

Evaluation of factors affecting natural reproduction of forest trees in central western Oregon

Creator:: Bever, Dale N.
Abstract:: This study was started in 1947 to investigate the value of various types and quantities of seed source in the establishment of reproduction on cutover land, and to determine the apparent effects of various man-made and natural factors upon the rate of restocking. The man-made and natural factors to be...
Resource Type:: Technical Report
Full Text:: REPRODUCTION OF FOREST TREES IN CENTRAL WESTERN OREGON By DALE N. BEVER Research Forester OREGON. STATE

Evaluation of root diseases on the Ducharme logging unit, Flathead Indian Reservation

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:: reduce disease losses are discussed. INTRODUCTION Root diseases are common within temperate conifer

Damage from laminated root rot at the Black Rock Forest management research area in western Oregon

Creator:: Lawson, Thomas T., Berg, Alan B., Hansen, Everett M., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: DAMAGE FROM LAMINATED ROOT ROT AT THE BLACK ROCK FOREST MANAGEMENT RESEARCH AREA IN WESTERN OREGON

Root disease survey on the Nezperce National Forest, Idaho

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:: , T. W. 1970. Laminated root rot of Douglas-fir in western Oregon and Washington. USDA-For. Serv. Res

Composition, volume, and prices for major softwood lumber types in western Oregon and Washington, 1971-2020

Creator:: Weigand, James F.
Abstract:: An analysis of lumber prices provided regressions for price trends during the period 1971-95 for composite lumber grades of major timber species found in the Pacific Northwest west of the crest of the Cascade Range. The analysis included data for coastal Douglas-fir and hem-fir lumber; coastal and inland Pacific Northwest...
Resource Type:: Technical Report

ScholarsArchive@OSU

Impact of Armillaria and annosus root diseases on stand and canopy structure, species diversity, and down woody material in a central Oregon mixed-conifer forest

Establishment report : permanent plots to evaluate the effects of Armillaria root disease in precommercially thinned stands

Evaluation of root diseases of containerized conifer seedlings at the Champion Timberlands Nursery, Plains, Montana

Root disease of containerized conifer seedlings, Western Forest Systems Nursery, Lewiston, Idaho

Conifer root diseases on the Kootenai National Forest, Montana

Evaluation of factors affecting natural reproduction of forest trees in central western Oregon

Evaluation of root diseases on the Ducharme logging unit, Flathead Indian Reservation

Damage from laminated root rot at the Black Rock Forest management research area in western Oregon

Root disease survey on the Nezperce National Forest, Idaho

Composition, volume, and prices for major softwood lumber types in western Oregon and Washington, 1971-2020

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