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Filtering by: Subject Root rots Non-Academic Affiliation Oregon State University. Graduate School Subject Douglas fir -- Diseases and pests

Poria weirii root rot of Douglas-fir : survival of the pathogen and infection of the host

Creator:

Nelson, E. E.

Resource Type:

Dissertation

Full Text:

Poria weirii root rot of douglas-fir: survival of the
Tree vigor and the susceptibility of Douglas-fir to armillaria root disease

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