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Filtering by: Subject Lodgepole pine -- Diseases and pests -- Montana Remove constraint Subject: Lodgepole pine -- Diseases and pests -- Montana Creator Harvey, George M. Remove constraint Creator: Harvey, George M. Degree Field Botany Remove constraint Degree Field: Botany

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  • Epidemiology of Lophodermella morbida in plantations of ponderosa pine in western Oregon

    Creator:
    Harvey, George M.
    Abstract:
    In 1967, Lophodermella morbida Staley and Bynum, a recently described hypodermataceous needle-cast fungus, became destructively epidemic in a knobcone pine (Pinus attenuata Lemm.) plantation in Del Norte County, California, and in several ponderosa pine (P. ponderosa Laws.) plantations in western and southwestern Oregon. This thesis presents information on this currently...
    Resource Type:
    Dissertation
    Full Text:
    in Del Norte County, California, and in several ponderosa pine (P. ponderosa Laws. ) plantations in