Index Catalog // ScholarsArchive@OSU

The seasonal occurrence and distribution of stoneflies (Plecoptera) of a western Oregon stream

Creator:: Kerst, Cary Dean
Abstract:: Plecoptera were collected from four sampling stations selected to represent a range of conditions on Oak Creek, a small woodland stream originating in the foothills of the Oregon Coast Range. The elevation of Site I was 700 ft. while the lowest site was located at 225 ft. Monthly benthos samples...
Resource Type:: Masters Thesis
Full Text:: (Plecoptera) of a western Oregon stream AN ABSTRACT OF THE THESIS OF CARY DEAN KERST for the MASTER OF

Survey of leafhoppers (Homoptera: Cicadellidae) in integrated production and non-integrated production vineyards of western Oregon using yellow sticky traps and sweep net methods

Creator:: Viguers, Leslie M.
Abstract:: Leafhoppers (Homoptera: Cicadellidae) were surveyed in Western Oregon vineyards in 1999. Four sites were sampled for leafhoppers using a sticky trap method, and 29 vineyards were sampled for leafhoppers using a sweep net method in the summer of 1999. The sticky trap and sweep net methods were chosen based on...
Resource Type:: Masters Thesis
Full Text:: Dean of Grdjia'tSchool I understand that my thesis will become part of the permanent collection of

Jerking behavior among phytoseiid mite species (Acari: Phytoseiidae)

Creator:: Blackwood, J. Scott
Abstract:: Jerking, which we defined as a pronounced and often repeated lunging of the entire body, was studied in larvae among seven species of phytoseiid mites, and in the nymphal stages of Neoseiulus fallacis (Garman). This behavior was observed in all active immature stages of N. fallacis, and in larvae of...
Resource Type:: Masters Thesis
Full Text:: : Maj or Professor, representing Entomology of Deparfliikc51Entomo logy Dean of Waduate School I

Taxonomy and distribution of the leaf-hopper genus Aphrodes Curtis (Homoptera:Cicadellidae) in North America

Creator:: Klein, Terry Allen
Abstract:: The subfamily Aphrodinae is represented in the Nearctic Region by eight species contained in a single tribe, Aphrodini, and genus Aphrodes. The external and internal morphology, biology and ecology of the Nearctic members of the genus Aphrodes were investigated. Distributional evidence indicates that six of the eight species, belonging to...
Resource Type:: Masters Thesis
Full Text:: for Privacy Dean of Gradual( School Date thesis is presented November 21, 1975 Typed by Mary Jo

A quantitative survey of the fleas associated with the gray-tailed vole, Microtus canicaudus Miller

Creator:: Robbins, Richard George
Abstract:: A study of the population dynamics and ecology of the fleas associated with the gray-tailed vole, Microtus canicaudus Miller, was conducted on three sites surrounding the city of Corvallis, Oregon. Over a period of 12 months, 22,641 adult and larval fleas representing three families and eight species were recovered from...
Resource Type:: Masters Thesis
Full Text:: Privacy Head of Department of Entomology Redacted for Privacy Dean of/Graduate School Date thesis is

Examination of factors affecting larval mortality of the black vine weevil, Otiorhynchus sulcatus Fab., on container grown rhododendrons

Creator:: La Lone, Ralph Stanley
Abstract:: Two types of exogenous mortality factors, density-independent and density-dependent, were identified for the black vine weevil, Otiorhynchus sulcatus Fab., developing on container grown rhododendrons. The addition of the insecticide acephate, (O.S.- Dimethyl acetylphosphoramidothioate, Orthene®)75S) to the rhizosphere of rhododendrons in which larval O. sulcatus develop was categorized as a density-independent...
Resource Type:: Masters Thesis
Full Text:: Redacted for Privacy Head of Department of Entomology ec Redacted for Privacy Dean of GraduAe School

Circadian rhythms in Megachile rotundata (Fabricius) and Nomia melanderi Cockerell

Creator:: Tweedy, David Graham
Abstract:: The purpose of the study was to determine an emergence rhythm, its period, and the developmental stages susceptible to emergence synchronization in the leafcutter bee Megachile rotundata (Fabricius). An attempt was made to determine if an oxygen consumption rhythm was present in the pupal and adult stages of the alkali...
Resource Type:: Masters Thesis
Full Text:: Chairman of Department of Entomology Redacted for Privacy Dean of Graduate School Date thesis is

Life history studies of Cinygma integrum Eaton (Ephemeroptera : Heptageniidae) and other mayflies associated with wood substrates in Oregon streams

Creator:: Pereira, Christine Rosabelle Dolores
Abstract:: Wood debris serves an important substrate for macroinvertebrates in streams. Particle size reduction due to feeding and other activities can be an important role of the fauna in wood degradation. In this study the Ephemeroptera associated with wood were investigated, with the objective of assessing their impact in the degradation...
Resource Type:: Masters Thesis
Full Text:: Redacted for Privacy Dean of Gr uate School 1 Date thesis is presented 7 August 1980 Typed by D. L

Habits and control of the Willamette mite Eotetranychus willamettei (McGregor) and related species in Hood River valley

Creator:: Olney, Vernon William
Resource Type:: Masters Thesis
Full Text:: privacy Chairman of School Graduate Committee Redacted for privacy Dean of Graduate School Date

Aspects of the field and developmental biology of a Apanteles yakutatensis, a parasitoid of Autographa californica

Creator:: Madar, Robert John
Abstract:: Behavioral and ecological aspects of the field and developmental biology of Apanteles yakutatensis (Ashm.), a primary larval parasite of the alfalfa looper, Autographa californica (Speyer), were investigated in 1980 and 1981. Populations of A. yakutatensis were found in commercial peppermint, alfalfa and crimson clover fields involving two areas (Willamette Valley,...
Resource Type:: Masters Thesis
Full Text:: Redacted for Privacy Chairman, Entomology Department 67 Redacted for Privacy (7 Dean of Gradu t school

ScholarsArchive@OSU

The seasonal occurrence and distribution of stoneflies (Plecoptera) of a western Oregon stream

Survey of leafhoppers (Homoptera: Cicadellidae) in integrated production and non-integrated production vineyards of western Oregon using yellow sticky traps and sweep net methods

Jerking behavior among phytoseiid mite species (Acari: Phytoseiidae)

Taxonomy and distribution of the leaf-hopper genus Aphrodes Curtis (Homoptera:Cicadellidae) in North America

A quantitative survey of the fleas associated with the gray-tailed vole, Microtus canicaudus Miller

Examination of factors affecting larval mortality of the black vine weevil, Otiorhynchus sulcatus Fab., on container grown rhododendrons

Circadian rhythms in Megachile rotundata (Fabricius) and Nomia melanderi Cockerell

Life history studies of Cinygma integrum Eaton (Ephemeroptera : Heptageniidae) and other mayflies associated with wood substrates in Oregon streams

Habits and control of the Willamette mite Eotetranychus willamettei (McGregor) and related species in Hood River valley

Aspects of the field and developmental biology of a Apanteles yakutatensis, a parasitoid of Autographa californica

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