Index Catalog // ScholarsArchive@OSU

Structure, function, and analysis of Coleoptera and Heteroptera assemblages on two species of hazelnut in Oregon

Creator:: Wetherill, Karen R.
Abstract:: The European hazelnut, Corylus avellana L., was imported into the U.S. in the late 1800's and is now grown throughout the Willamette Valley in Oregon. A native species of hazelnut, C. cornuta Marshall, is a common shrub found in forested areas of the Pacific Northwest. Foliage of both C. avellana...
Resource Type:: Masters Thesis
Full Text:: , Function, and Analysis of Coleoptera and Heteroptera Assemblages on Two Species of Hazelnut in Oregon

Host suitability studies of Douglas-fir and white alder to the gypsy moth

Creator:: Joseph, Gladwin
Abstract:: Douglas-fir, Pseudotsuga menziesii and white alder, Alnus rhombifolia, species that are prevalent in the Pacific Northwest, were fed to larvae of the gypsy moth, Lymantria dispar L. Gypsy moth larvae from different familial lines (egg masses) from a single geographic population were evaluated on these hosts. The larvae were fed...
Resource Type:: Masters Thesis
Full Text:: detrimental effects of Douglas-fir plant extracts on neonate and third instar larvae. However, fourth

Aphid transmission of an undescribed virus from sweet cherry

Creator:: Smith, Gordon Kent
Resource Type:: Masters Thesis
Full Text:: the Oregon State University Plant Pathology Farrn, Corvallis, Oregon. The leaves were divided and

Insect pests affecting clover in Oregon

Creator:: Anderson, Ernest Clifford
Resource Type:: Masters Thesis
Full Text:: . This was confirmed by Dr. C. E. Owens, Professor of Botany and Plant Pathology, Oregon State College

Host selection, reproductive biology, host-specific development and mortality of the codling moth, Cydia pomonella (L.) (Lepidoptera: Torticidae), in apple and pear

Creator:: Marti, Santiago Marti
Abstract:: The biology and behavior of the codling moth, Cydia pomonella (L.), was studied to determine factors responsible for differences in susceptibility to moth damage among apple and pear cultivars. In release experiments, codling moth adults were intercepted in significantly greater numbers in host (apple, pear) than in non-host (maple) trees,...
Resource Type:: Dissertation
Full Text:: Government that funded my studies at Oregon State University and provided some research funds. In this

The western oak bark beetle, Pseudopityophthorus pubinpennis (Lec.), in the central Willamette Valley of Oregon

Creator:: Dobson, Richard Cecil
Resource Type:: Dissertation
Full Text:: pubinpennis (Lec.), in the central Willamette Valley of Oregon ?$IS W*ffiS e&F.x by B:*&*eB *ffirL S$SS$X

Oviposition behavior and thermal constants for egg development of the filbertworm Cydia latiferreana (Lepidoptera: Tortricidae)

Creator:: Kelly, Alice M.
Abstract:: Cydia latiferreana Wlshm. is recognized as the key insect pest of cultivated filbert (hazelnut) in Oregon. The purpose of this study was to obtain information on mating and oviposition behavior of the adult insect, to calculate the lower temperature threshold and degree-days required for egg development, and to develop an...
Resource Type:: Masters Thesis
Full Text:: infestation was light. In 1937, the Bureau of Entomology and Plant Quarantine laboratory at Eugene, Oregon

Transmission efficiency and life table parameters of western flower thrips, Frankliniella occidentalis (Pergande) exposed to tomato spotted wilt virus-impatiens serotype

Creator:: Sether, Diane M.
Abstract:: Peppermint, Mentha piperita 'Black Mitcham' was established as a host for tomato spotted wilt virus-impatiens serotype (TSWV-I). TSWV-I infection of peppermint, initially observed in a research greenhouse (Corvallis, OR), included stunting and downward curling of leaves accompanied by bronzing, and occasionally tip necrosis. Young leaves appeared either symptomless, deformed, or...
Resource Type:: Masters Thesis
Full Text:: predominantly on the TSWV-L serotype, an important disease of field and ornamental crops (Cho et al., 1987

Cereal stem moth, Ochsenheimeria vacculella Fischer von Röslerstamm (Lepidoptera : Ochsenheimeriidae) : field biology and larval development on selected grasses and cereals in Western Oregon

Creator:: Panasahatham, Sarote
Abstract:: The seasonal life history of the cereal stem moth (CSM), Ochsenheimeria vacculella Fischer von Roslerstamm, (Lepidoptera : Ochsenheimeriidae) was investigated in a commercial field of annual ryegrass in the Willamette Valley, OR from January 1993 to August 1994. Phenology of life stages, effect of temperature on eclosion, and development of...
Resource Type:: Masters Thesis
Full Text:: on Selected Grasses and Cereals in Western Oregon Abstract approved : Glenn C. Fier The seasonal

Arthropod community structure in regenerating Douglas-fir and red alder forests : influences of geography, tree diversity and density

Creator:: Schaerer, Brett L.
Abstract:: The structuring of canopy arthropod communities was reviewed and investigated in relation to tree species diversity and its component factors, interspersion of different species and density of each tree species. Fifteen treatments of Douglas-fir (Pseudotsuga menziesii) and red alder (Alnus rubra) (various densities and proportions of each) were randomly assigned...
Resource Type:: Masters Thesis
Full Text:: than natural plant life cycles, and occasional large-scale disturbances such as pest outbreaks or

ScholarsArchive@OSU

Structure, function, and analysis of Coleoptera and Heteroptera assemblages on two species of hazelnut in Oregon

Host suitability studies of Douglas-fir and white alder to the gypsy moth

Aphid transmission of an undescribed virus from sweet cherry

Insect pests affecting clover in Oregon

Host selection, reproductive biology, host-specific development and mortality of the codling moth, Cydia pomonella (L.) (Lepidoptera: Torticidae), in apple and pear

The western oak bark beetle, Pseudopityophthorus pubinpennis (Lec.), in the central Willamette Valley of Oregon

Oviposition behavior and thermal constants for egg development of the filbertworm Cydia latiferreana (Lepidoptera: Tortricidae)

Transmission efficiency and life table parameters of western flower thrips, Frankliniella occidentalis (Pergande) exposed to tomato spotted wilt virus-impatiens serotype

Cereal stem moth, Ochsenheimeria vacculella Fischer von Röslerstamm (Lepidoptera : Ochsenheimeriidae) : field biology and larval development on selected grasses and cereals in Western Oregon

Arthropod community structure in regenerating Douglas-fir and red alder forests : influences of geography, tree diversity and density

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