Index Catalog // ScholarsArchive@OSU

A study of the economic status of the ringed-neck or Chinese pheasant in Oregon

Creator:: Allen, Thomas Cort
Resource Type:: Masters Thesis
Full Text:: A study of the economic status of the ringed-neck or

Effects of stream restoration on macroinvertebrate communities in an Oregon Coast Range system

Creator:: Christensen, M. Jo
Abstract:: Stream-restoration projects are usually designed to improve habitat quality for fishes. These projects manipulate flow patterns, substrate distribution, and amount and placement of large woody debris. Consequently, they also affect the size and composition of the aquatic macroinvertebrate community. This research evaluates two types of fish habitat restoration: off-channel structures...
Resource Type:: Masters Thesis
Full Text:: physical habitat for fishes, they may alter or reduce the availability of food for fishes feeding on

Biology of some Oregon rain bettles, Pleocoma spp., associated with fruit trees in Wasco and Hood River counties

Creator:: Ellertson, Floyd Elroy
Resource Type:: Dissertation
Full Text:: Clackw:l s County. The subspecies P. d . dublt Dilley and or st Grove in tns 'ington County, S le:m

The parasite complex of the pea aphid, Acyrthosiphon pisum (Harris) on alfalfa in western Oregon

Creator:: Dickie, Alfred Gordon
Abstract:: This study was initiated in the Spring of 1966 for the purpose of determining the present status and effectiveness of imported parasitic wasps of the pea aphid in the Willamette Valley of western Oregon. The pea aphid is a serious pest throughout the pea and alfalfa growing regions of the...
Resource Type:: Masters Thesis
Full Text:: Farm in 1963. Releases of the Indian wasp Aphidius smithi were made at Dayton in Yamhill County in

A biological and systematic study of the armored boreid, Caurinus dectes, with comparative notes on related mecoptera

Creator:: Russell, Loren Kenneth
Abstract:: Caurinus dectes Russell is a minute, brachypterous scorpionfly which was discovered at Marys Peak, Benton County, Oregon, in 1976, and subsequently described as the only representative of the subfamily Caurininae within the Boreidae (snow scorpionflies). Caurinus dectes is now known to range from the Olympic Peninsula and Northern Cascades in...
Resource Type:: Dissertation
Full Text:: minute, brachypterous scorpionfly which was discovered at Marys Peak, Benton County, Oregon, in 1976

Toxicity of some commonly used pesticides to Trioxys Pallidus and its establishment in filbert orchards of Willamette Valley

Creator:: Saeed, Mohammad
Abstract:: A parasitic wasp, Trioxys pallidus Haliday (Hymenoptera: Aphidiidae) was imported from Europe and initially released against the filbert aphid Mvzocallis coryli (Goetze) in hazelnut (filbert) orchards of the Willamette Valley, Oregon beginning in 1984. In the present study, I investigated the establishment rates of this parasitoid. A total of 13...
Resource Type:: Masters Thesis
Full Text:: per year) and carbaryl (1 spray per year) since 1985, were collected near Corvallis, Benton County

Population dynamics of the cinnabar moth, Tyria jacobaeae (Lepidoptera: Arctiidae)

Creator:: Isaacson, Dennis
Abstract:: The dynamics of a field population of the cinnabar moth, Tyria jacobaeae L., were studied near Jordan, Linn County, Oregon. In both 1970 and 1971 larval populations were so large that all foliage of the host weed, tansy ragwort, Senecio jacobaea L., was consumed. The ensuing starvation accounted for the...
Resource Type:: Masters Thesis
Full Text:: jacobaeae L., were studied near Jordan, Linn County, Oregon. In both 1970 and 1971 larval populations were

History and distribution of bee diseases in Oregon

Creator:: Black, A. Burr
Abstract:: This thesis is a discussion of the major bee diseases found in Oregon with notes on minor ailments of bees and on diseases not yet present followed by a history of the introduction and spread of the more important diseases, a history of bee legislation in Oregon and a discussion...
Resource Type:: Masters Thesis
Full Text:: Ma 9, 1939 Title HISTORY AND DISTRIBUTION OF BEE DISEASES IN OREGON Abstract approved by or

Biology and adult variability in an Oregon population of Leptarctiacaliforniae (Walker) (Lepidoptera: Arctiidae)

Creator:: Mays, David Lee
Abstract:: Leptarctia californiae (Walker) was studied on clear and semi-forested southern slopes in the Coast Range Mountains of Benton County, Oregon. The spring of 1965 had an unusually long warm period (21 days) resulting in adult emergence approximately 25 days earlier than in the cooler spring of 1966. Peak flight activity...
Resource Type:: Masters Thesis
Full Text:: County, Oregon. The spring of 1965 had an unusually long warm period (21 days) resulting in adult

The species composition and adaptations of insects in an intermittent stream in western Oregon

Creator:: Tew, Michael Peter
Abstract:: The insect fauna of a small second order intermittent stream near Corvallis, Benton County, Oregon was studied. The species composition was determined, attempts were made to monitor migration to the stream, qualitative and quantitative benthos samples were taken, emergence was sampled, the dry stream bed was examined for forms of...
Resource Type:: Masters Thesis
Full Text:: Corvallis, Benton County, Oregon was studied. The species composition was determined, attempts were made to

ScholarsArchive@OSU

A study of the economic status of the ringed-neck or Chinese pheasant in Oregon

Effects of stream restoration on macroinvertebrate communities in an Oregon Coast Range system

Biology of some Oregon rain bettles, Pleocoma spp., associated with fruit trees in Wasco and Hood River counties

The parasite complex of the pea aphid, Acyrthosiphon pisum (Harris) on alfalfa in western Oregon

A biological and systematic study of the armored boreid, Caurinus dectes, with comparative notes on related mecoptera

Toxicity of some commonly used pesticides to Trioxys Pallidus and its establishment in filbert orchards of Willamette Valley

Population dynamics of the cinnabar moth, Tyria jacobaeae (Lepidoptera: Arctiidae)

History and distribution of bee diseases in Oregon

Biology and adult variability in an Oregon population of Leptarctiacaliforniae (Walker) (Lepidoptera: Arctiidae)

The species composition and adaptations of insects in an intermittent stream in western Oregon

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