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Creator:: James, Robert L., Gilligan, Carma J., and United States. Forest Service. Northern Region
Resource Type:: Technical Report
Full Text:: • OCCURRENCE OF FUSARIUM ON THE ROOTS OF NONDISEASED BAREROOT DOUGLAS-FIR SEEDLINGS USDA FOREST SERVICE

Creator:: James, Robert L., United States. Forest Service. Northern Region, and United States. Forest Pest Management
Abstract:: Investigations were conducted to understand the epidemiology of Fusarium on containerized Douglas-fir seedlings. Types and importance of Fusarium inoculum sources, relationships between seedling infection and symptom production, amounts and types of diseases that occurred throughout typical growth cycles, and the importance of secondary pathogen spread were investigated. Levels of Fusarium...
Resource Type:: Technical Report
Full Text:: • Report 87-13 3450 December 1987 EPIDEMIOLOGY OF FUSARIUM ON CONTAINERIZED DOUGLAS-FIR SEEDLINGS

Creator:: James, Robert L., Woo, John You, and United States. Forest Service. Northern Region
Resource Type:: Technical Report
Full Text:: -FIR AND ENGELMANN SPRUCE GERMLINGS e by R. L. James 1/ Plant Pathologist • • and INTRODUCTION

Creator:: James, Robert L. and United States. Forest Service. Northern Region
Abstract:: Investigations were conducted to determine importance of Fusarium as a pathogen on Douglas-fir seed and containerized seedlings at the Plum Creek Nursery during 1985. Fusarium oxvsnorum was occasionally isolated from necrotic lesions on young germinants that lacked foliar symptoms. Low levels of F. oxvsnorum were detected on three of four...
Resource Type:: Technical Report
Full Text:: DOUGLAS-FIR SEED AND CONTAINERIZED SEEDLINGS AT THE PLUM CREEK NURSERY, PABLO, MONTANA 1.1235, • by

Creator:: James, Robert L. and United States. Forest Service. Northern Region
Abstract:: Cones of Douglas-fir and ponderosa pine with extensive mold on external portions of scales were sampled for presence of fungi potentially pathogenic to conifer seedlings in nurseries. The major colonizers of cone scales and external seedcoats for both conifer species were Trichoderma spp. Penicillium spp. were also very common. The...
Resource Type:: Technical Report
Full Text:: • • Report 95-5 3450 February 1995 FUNGI ON DOUGLAS-FIR AND

Creator:: James, Robert L. and United States. Forest Service. Northern Region
Resource Type:: Technical Report
Full Text:: 1988 A- 3 M ICROWAVE TREATMENTS TO ERADICATE SEEDBORNE FUNGI • ". 8- ON DOUGLAS-FIR SEED R. L. James

Creator:: James, Robert L., United States. Forest Health Protection, and United States. Forest Service. Northern Region
Abstract:: Tests were conducted at the USDA Forest Service Nursery, Coeur d'Alene, Idaho to evaluate effectiveness of spring fumigation with dazomet to improve survival and performance of Douglas-fir and western white pine transplants. Spring fumigation greatly reduced populations of potentially pathogenic Fusarium and Pythium spp. Disease levels of container (plug+1) and...
Resource Type:: Technical Report
Full Text:: OF SPRING APPLICATIONS OF DAZOMET ON ROOT DISEASES AND PERFORMANCE OF DOUGLAS-FIR AND WESTERN WHITE

Creator:: James, Robert L., United States. Forest Health Protection, and United States. Forest Service. Northern Region
Abstract:: A preliminary evaluation of the biological control formulation of Trichoderma harzianum marketed as BioTrek® was conducted on bareroot Douglasfir and western white pine seedlings at the USDA Forest Service Nursery, Coeur d'Alene, Idaho. The biocontrol material was applied topically on seed shortly after sowing and comparisons made between treated and...
Resource Type:: Technical Report
Full Text:: TOPICAL APPLICATION OF THE BIOLOGICAL CONTROL AGENT BIOTREK® ON PRODUCTION OF BAREROOT DOUGLAS-FIR AND

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