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Filtering by: Subject Swiss needle cast -- Coast Ranges Committee Member Maguire, Douglas Subject Douglas fir -- Diseases and pests -- Coast Ranges

Effects of fertilization, vegetation control, and sulfur on swiss needle cast and growth of coastal Douglas-fir saplings

Creator:

Crane, Gabriel A.

Abstract:

A series of studies and replicated field sites were implemented in the Oregon Coast Range within Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) sapling plantations infected with varying levels of Swiss needle cast (SNC) caused by the fungus, Phaeocryptopus gaeumannii (Rhode) Petrak (PG). This research was conducted to understand the effects of...

Resource Type:

Masters Thesis

Full Text:

Fertilization, Vegetation Control, and Sulfur on Swiss Needle Cast and Growth of Coastal Douglas-Fir Saplings
Taper, crown, and volume responses of a coastal Oregon Douglas-fir stand to sulfur treatments for control of Swiss needle cast

Creator:

Younger, Nicole L.

Abstract:

For nearly two decades, foresters in the Oregon Coast Range have been witnessing a substantial decease in Douglas-fir (Pseudotsuga menziesii var. menziesii [Mirb.] Franco.) vigor and growth, caused by Swiss needle cast (Phaeocryptopus gaeumannii). Currently, no solutions are in sight but aerially-applied sulfur may alleviate Swiss needle cast and its...

Resource Type:

Masters Thesis

Full Text:

)................................................... 73 1 1 Introduction The growth impact of Swiss needle cast (SNC) on Oregon Coast