Index Catalog // ScholarsArchive@OSU

A study of ticks (Acarina: Ixodidae) and chiggers (Trombiculidae) from two areas in western Oregon

Creator:: Easton, Emmett Richard
Abstract:: A study of the host range and distribution of ticks and chiggers (Acari) was undertaken in two contrasting forested areas of western Oregon. Acarines were sampled from host mammals which were trapped along line transects laid out in both areas, each consisting of 18 stations 50 feet apart. Hosts were...
Resource Type:: Dissertation

The role of acoustical signals in the communicative behavior of the water scavenger beetles, Tropisternus (Coleoptera:hydrophilidae)

Creator:: Ryker, Lee Chester
Abstract:: The communicative behavior of five species and subspecies of Tropisternus Solier (Coleoptera: Hydrophilidae) was studied. These aquatic beetles have stress and calling chirps (both sexes), a second male calling signal (one species), a single male courtship sound (usually), a male copulatory sound, and a female aggressive rejection buzz (three species)....
Resource Type:: Dissertation
Full Text:: Sciences Center, Oregon State University. TABLE OF CONTENTS I. INTRODUCTION Page 1 Insect

Gamma irradiation of the western cherry fruit fly for the sterile male control technique

Creator:: Brown, Robert David
Abstract:: The western cherry fruit fly, Rhagoletis indifferens Curran, was studied to determine the suitability of the sterile insect technique for its control. To obtain insect material, field collection of maggots is preferred to sifting of soil or rearing on artificial diet. The western cherry fruit fly is strictly univoltine; only...
Resource Type:: Dissertation
Full Text:: determine the suitability of the sterile insect technique for its control. To obtain insect material

Survival and development of the flat-headed fir borer in forest residues as affected by host and microclimatic conditions

Creator:: Scott, Donald Wayne
Abstract:: The purpose of this study was to examine various host and microclimatic influences affecting the survival and development of the flatheaded fir borer, Melanophila drummondi (Kirby) in Douglas fir, Pseudotsuga menziesii (Mirbel) Franco residues. It also expands current knowledge of the biology, bionomics, life history, ecology, and biotic potential for...
Resource Type:: Dissertation
Full Text:: decomposition of forest residues by this insect. The primary study objective was to determine the optimum

Some factors in the development of northwestern entomology

Creator:: Bonnell, Daniel Ernest
Resource Type:: Dissertation
Full Text:: founded upon agri- culture and forest industry. The losses in these two categories, due to insect ravages

Part I. The total synthesis of (±)-cinnamodial and related drimane sesquiterpenes; Part II. Photochemical activation of the carboxyl group via N-Acyl-2-thionothiazolidines

Creator:: Burton, Lester Percy Joseph
Resource Type:: Dissertation
Full Text:: synthesis of the insect antifeedant (±)-cinnamodial ( ) and of the related drimane sesquiterpenes

Prothoracicotropic hormone, cyclic nucleotides, and proctolin in insect central nervous system

Creator:: Kingan, Timothy Gilmore
Abstract:: Prothoracicotropic hormone has been partially purified from whole heads of tobacco hornworm larvae, Manduca sexta. Activity was followed with a larval bioassay. Activity was purified 4400 fold from crude extracts. The hormone was found to be a heat-stable polypeptide with an approximate molecular weight of 25,000 Daltons. The hormone has...
Resource Type:: Dissertation
Full Text:: proctolin in insect central nervous system AN ABSTRACT OF THE THESIS OF Timothy Gilmore Kingan for the

Lipid content and fatty acid composition of aquatic insects : dietary influence and aquatic adaptation

Creator:: Hanson, Boyd Jay
Resource Type:: Dissertation

Spatial patterns of predaceous and phytophagous apple mites (Acari : Eriophyidae, phytoseiidae, Stigmaeidae, Tetranychidae) : intra- and interspecific relationships

Creator:: Slone, Daniel H.
Abstract:: Aggregation and species association of 9 species of phytophagous and predaceous mites were studied for 6 yr in an orchard with 100, 2 m tall 'Red Delicious' apple trees. To quantify aggregation, a method was developed that is powerful, and easily interpreted. It relates the proportion of habitat occupied to...
Resource Type:: Dissertation
Full Text:: . Hassell, M. P. and R. M. May. 1973. Stability in insect host-parasite models. Journal of Animal Ecology

A chalcid parsite, Dinarmus acutus Thomson, of the vetch bruchid, Bruchus brachialis Fahraeus

Creator:: Leong, Kingston Lin Hoy, 1940-
Resource Type:: Dissertation
Full Text:: laboratory and field conditions. The host insect was the vetch bruchid, Bruchus brachialis Fahraeus. Surveys

ScholarsArchive@OSU

A study of ticks (Acarina: Ixodidae) and chiggers (Trombiculidae) from two areas in western Oregon

The role of acoustical signals in the communicative behavior of the water scavenger beetles, Tropisternus (Coleoptera:hydrophilidae)

Gamma irradiation of the western cherry fruit fly for the sterile male control technique

Survival and development of the flat-headed fir borer in forest residues as affected by host and microclimatic conditions

Some factors in the development of northwestern entomology

Part I. The total synthesis of (±)-cinnamodial and related drimane sesquiterpenes; Part II. Photochemical activation of the carboxyl group via N-Acyl-2-thionothiazolidines

Prothoracicotropic hormone, cyclic nucleotides, and proctolin in insect central nervous system

Lipid content and fatty acid composition of aquatic insects : dietary influence and aquatic adaptation

Spatial patterns of predaceous and phytophagous apple mites (Acari : Eriophyidae, phytoseiidae, Stigmaeidae, Tetranychidae) : intra- and interspecific relationships

A chalcid parsite, Dinarmus acutus Thomson, of the vetch bruchid, Bruchus brachialis Fahraeus

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