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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

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

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

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

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

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