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Creator:: Wood, Lyman Wentsch, 1899- and Forest Products Laboratory (U.S.)
Abstract:: Information reviewed and reaffirmed October 1960.
Resource Type:: Technical Report
Full Text:: PROPER-FEES OF WHITE-POCKET DOUGLAS-FIR *UMBER Information Reviewed and Reaffirmed October 1960 No

Creator:: Rosso, Pablo H.
Abstract:: The main objective of this thesis was to determine the influence of tree vigor on susceptibility to Armillaria root disease. First, the effect of thinning, fertilizing and pruning on tree vigor of four young Douglas-fir (Pseudo tsuga menziesii var. menziesi,) plantations was explored. Tree vigor was calculated by measuring wood...
Resource Type:: Masters Thesis

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. State & Private Forestry
Abstract:: Eighteen isolates of Fusarium comprising four species (F. oxysporum, E. avenaceum, E. acuminatum, and F. sambucinum) isolated from diseased conifer seedlings from nurseries were tested for pathogenicity on Douglas-fir germlings. Three of the most pathogenic F. oxysporum isolates on Douglas-fir germlings were also tested on ponderosa pine germlings and older...
Resource Type:: Technical Report
Full Text:: ON DOUGLAS-FIR AND PONDEROSA PINE SEEDLINGS by R. L. James, Plant Pathologist, Cooperative Forestry

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