Index Catalog // ScholarsArchive@OSU

Visual and olfactory responses of the horn fly, Haematobia irritans (Linn.)

Creator:: Hargett, Louie Thomas, 1932-
Resource Type:: Dissertation
Full Text:: VISUAL AND OLFACTORY RESPONSES OF THE HORN FLY , Haematob1a

Varietal resisitance of hops, Humulus lupulus (Linn.), to the two-spotted spider mite, Tetranychus urticae (Koch)

Creator:: Mayberry, Terrel Wilson
Abstract:: The purpose of this study was to determine the relative resistance of genetic lines of hops, Humulus lupulus (Linn.) to the two-spotted spider mite, Tetranychus urticae (Koch) in western Oregon. Approximately three-hundred genetic lines of hops were screened under insectory conditions during the 1965 growing season at Corvallis, Oregon. Reduction...
Resource Type:: Masters Thesis
Full Text:: the Two-Spotted Spider Mite, Tetranychus Urticae (KOCH) AN ABSTRACT OF THE THESIS OF Terrel Wilson

Transmission variation and loss of aphid transmissibility of bean yellow mosaic virus

Creator:: Kamm, James A.
Abstract:: Several bean yellow mosaic virus (BYMV) strains, presumably not transmissible by aphids, were studied to determine the biological and environmental conditions which would possibly result in aphid transmission of these strains. Investigations were made to study the effect of different aphid rearing conditions on the transmission frequency of BYMV. Also,...
Resource Type:: Dissertation
Full Text:: of Bean Yellow Mosaic Virus AN ABSTRACT OF THE THESIS OF James Albert Kamm for the Ph. D. in

Trace metal concentrations in the signal crayfish, Pacifastacus leniusculus (Decapoda: Astacidae), and the stonefly Pteronarcys californica (Plecoptera: Pteronarcyidae) along a downstream gradient of the Umatilla River

Creator:: Snyder, Jennifer L.
Abstract:: Metals are a persistent form of freshwater pollution and have been shown to bioaccumulate in aquatic macroinvertebrates through direct contact with contaminated water, sediments, and through consumption of contaminated organisms. This research explored the longitudinal bioaccumulation patterns of 5 common trace metals (Cr, Cu, Zn, Cd, and Pb) in the...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jennifer L. Snyder for the degree of Master of Science in

Thelytokous and dioecious populations of Phenacaspis pinifoliae (Fitch), (Homoptera : Diaspididae)

Creator:: Stimmann, Michael W.
Abstract:: Two populations of the pine needle scale, Phenacaspis pinifoliae (Fitch), were studied. One population was located in Corvallis, Oregon, and the other population was located near Santiam Pass, Oregon. Both populations were feeding on Pinus contorta. The Corvallis population was unisexual, univoltine, and over wintered as both eggs and adult...
Resource Type:: Masters Thesis
Full Text:: Entomological Society 57:472-479- 1964. 3. Brown, E. C. Reproduction of the pine needle scale, Phena- caspis

The Thysanoptera of Oregon

Creator:: Post, Richard Lewis
Resource Type:: Dissertation
Full Text:: suggestions on the proper way to cite entomological literature. Mr. J. C. Crawford, Division of Insect

The taxonomic value of the metathoracic wing in the Scutelleridae (Hemiptera: Heteroptera)

Creator:: Au, Eunice Chizuru
Abstract:: Classification based on metathoracic wing venation does not coincide with the existing higher classification of the family Scutelleridae. The wings of the genera in the Scutellerinae possess a similar general pattern of venation which is quite distinct from that of Eurygasterinae, Odontoscelinae, Odontotarsinae, and Pachycorinae. The Scutellerinae wings possess three...
Resource Type:: Masters Thesis
Full Text:: The taxonomic value of the metathoracic wing in the

The taxonomic value of the external female genitalia in the genus Nabis Latreille (Hemiptera: Heteroptera: Nabidae)

Creator:: Mitri, Talaat Khairi
Resource Type:: Masters Thesis
Full Text:: Lonograph of the family Nabidae of North America a key, synonymies, des- cription, distribution and some

The taxonomic significance of the male genitalia and associated structures in the genus Eucerceris cresson (Hymenoptera : Sphecidae)

Creator:: Davidson, Jerry Mitchell
Abstract:: The male genitalia of 69 species, representing eight genera of sphecid wasps, were examined in order to ascertain their taxonomic value. In all, the male genitalia of approximately 1000 specimens were critically studied. Emphasis was placed on the genitalia and associated sclerites of the known males in the genus Eucerceris....
Resource Type:: Masters Thesis
Full Text:: , Asia and South America, determination of the relationships of Philanthus and Trachypus to other

The species of root-weevils attacking strawberry with especial reference to their life history, habits and control in Oregon

Creator:: Wilcox, Joseph, 1901-1982
Resource Type:: Masters Thesis
Full Text:: have duced into North America, Regarding the spread of the species by Feytaud urope. Ac

ScholarsArchive@OSU

Visual and olfactory responses of the horn fly, Haematobia irritans (Linn.)

Varietal resisitance of hops, Humulus lupulus (Linn.), to the two-spotted spider mite, Tetranychus urticae (Koch)

Transmission variation and loss of aphid transmissibility of bean yellow mosaic virus

Trace metal concentrations in the signal crayfish, Pacifastacus leniusculus (Decapoda: Astacidae), and the stonefly Pteronarcys californica (Plecoptera: Pteronarcyidae) along a downstream gradient of the Umatilla River

Thelytokous and dioecious populations of Phenacaspis pinifoliae (Fitch), (Homoptera : Diaspididae)

The Thysanoptera of Oregon

The taxonomic value of the metathoracic wing in the Scutelleridae (Hemiptera: Heteroptera)

The taxonomic value of the external female genitalia in the genus Nabis Latreille (Hemiptera: Heteroptera: Nabidae)

The taxonomic significance of the male genitalia and associated structures in the genus Eucerceris cresson (Hymenoptera : Sphecidae)

The species of root-weevils attacking strawberry with especial reference to their life history, habits and control in Oregon

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