Index Catalog // ScholarsArchive@OSU

Effects of defoliation by the pine butterfly (Neophasia menapia Felder) upon ponderosa pine

Creator:: Evenden, James Cawston
Resource Type:: Masters Thesis

Chemical applications for control of armillaria root rot of Ponderosa pine

Creator:: Filip, Gregory M.
Abstract:: Root rot caused by Armillariella mellea creates roughly circular disease centers of infected dead and dying trees in the younggrowth ponderosa pine forest under study. Research objectives concerning chemical control of the disease were: 1) to test the effectiveness of certain chemicals in protecting living pines adjacent to disease centers...
Resource Type:: Dissertation
Full Text:: APPLICATIONS FOR CONTROL OF ARMILLARIA ROOT ROT OF PONDEROSA PINE Abstract approved: Redacted for Privacy

Infection of stressed ponderosa pines by Armillariella mellea from indigenous and artificial inoculum sources

Creator:: Fuller, Lloyd Randolph
Abstract:: Armillariella mellea (Vahl. ex Fr. ) Karst. was grown aseptically in hazel stems (Corylus cornuta var. californica) which were used in the forest to infect 290 ponderosa pines (Pinus ponderosa Laws.) which had been "stressed" in five different manners plus two control groups. All trees were inoculated twice giving a...
Resource Type:: Dissertation
Full Text:: ponderosa pine stands was found to be influenced by silvicultural histories of the stands. The highest

Stress response as a basis for disease susceptibility in Ponderosa Pine

Creator:: Koonce, Andrea
Abstract:: Trees stressed by artificial and natural means were sampled for response in growth and vigor, carbohydrate content, resin pressure characteristics, and water relations. Tree response was found to reflect both the severity and type of stress imposed. Crown color and appearance were reliable indicators of prolonged stress and advanced decline...
Resource Type:: Masters Thesis
Full Text:: SUSCEPTIBILITY IN PONDEROSA PINE Abstract Approved: Signature redacted for privacy. Trees stressed by

Physical factors affecting longevity and germination of seed of Western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum)

Creator:: Beckman, Kent Mardsen
Abstract:: Longevity and germination of seed of western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum) of ponderosa pine (Pinus ponderosa Laws.) was investigated to determine: 1) the influence of humidity and temperature on seed viability and deterioration during storage; 2) the physiology of seed dormancy; 3) the composition of seed reserve food...
Resource Type:: Dissertation
Full Text:: pine (Il3"" ponderosa Laws. ) was investigated to determine: I) the influence of humidity and

Distribution and variation of Armillariella mellea clones in relation to vegetative cover and severity of root rot in Ponderosa pine

Creator:: Cooley, Sally Joan
Abstract:: Root rot due to Armillariella mellea (Vahl. ex Fr.) Karst. is unusually severe in ponderosa pine near Glenwood, Washington. Isolate relations, clonal variability, vegetation patterns, and climate were examined in relation to severity of disease in this area. Ninety-one isolates from 70 infection centers were examined. Pairings of neighboring isolates...
Resource Type:: Masters Thesis
Full Text:: in relation to vegetative cover and severity of root rot in Ponderosa pine AN ABSTRACT OF THE

Parasites and predators of Dendroctonus ponderosae Hopkins (Coleoptera : Scolytidae) in ponderosa pine

Creator:: Billings, Ronald F.
Abstract:: The bark beetle Dendroctonus ponderosae Hopkins (Coleoptera: Scolytidae) has caused severe mortality in recent decades to young stands of ponderosa pine in the western United States. Insect parasites and predators, believed to be of importance in the population dynamics of the beetle, were the subject of the thesis research, conducted...
Resource Type:: Masters Thesis

The western pine bark beetle problem

Creator:: Winslow, L. P.
Resource Type:: Undergraduate Thesis
Full Text:: ) (Commercial Range) Period Period (No. per lb.) (Durability) Range of Ponderosa Pine Epidemic

The western pine beetle and its destructiveness to western yellow pine : silviculture project 1947

Creator:: Vandal, Cecil G.
Resource Type:: Undergraduate Thesis
Full Text:: ponderosa pine forests. This insect is called hark beetle because it in habits tne inner layer of bark and

Anatomical studies of Pinus ponderosa Laws : infested by Elytroderma deformans (Weir) Darker

Creator:: Wirtz, Felicia Pietrykowski
Abstract:: Pine needle blight of Pinus ponderosa Laws. caused by Elytroderma deformans (Weir) Darker is recognized by changes in the needles, in the bark and in the development of the branches. Anatomical studies of the host-parasite relation have been made previously on young pine tissue up to four years of age...
Resource Type:: Dissertation
Full Text:: : Dr. Frank H. Smith Pine needle blight of Pinus ponderosa Laws. caused by Elytroderma deformans

ScholarsArchive@OSU

Effects of defoliation by the pine butterfly (Neophasia menapia Felder) upon ponderosa pine

Chemical applications for control of armillaria root rot of Ponderosa pine

Infection of stressed ponderosa pines by Armillariella mellea from indigenous and artificial inoculum sources

Stress response as a basis for disease susceptibility in Ponderosa Pine

Physical factors affecting longevity and germination of seed of Western dwarfmistletoe (Arceuthobium campylopodum Engelm. f. campylopodum)

Distribution and variation of Armillariella mellea clones in relation to vegetative cover and severity of root rot in Ponderosa pine

Parasites and predators of Dendroctonus ponderosae Hopkins (Coleoptera : Scolytidae) in ponderosa pine

The western pine bark beetle problem

The western pine beetle and its destructiveness to western yellow pine : silviculture project 1947

Anatomical studies of Pinus ponderosa Laws : infested by Elytroderma deformans (Weir) Darker

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