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Filtering by: Creator Maguire, Doug Subject Swiss needle cast -- Coast Ranges

Alterations in Douglas-fir crown structure, morphology, and dynamics imposed by the Swiss needle cast disease in the Oregon Coast Range

Creator:

Weiskittel, Aaron R.

Abstract:

Plants respond to defoliation in many different and complex ways, depending on their growth habit and form as well as the extent and duration of the defoliation. Tree crowns have been shown to be quite sensitive to disturbances such as defoliation, however quantitative relationships have rarely been developed, making the...

Resource Type:

Masters Thesis

Full Text:

foremost, thanks to Doug Maguire for the advice, funding, and moral support necessary to complete this
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:

committee, Dr. Doug Maguire, Marc Vomocil, and Dr. Richard Waring for their suggestions along the way