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A review of the genus Torymus for Oregon and California (hymenoptera: chalcidoidea: torymidae)

Creator:: Hobbs, Kenneth Rollin
Resource Type:: Dissertation
Full Text:: A review of the genus Torymus for Oregon and California

Distribution and Ecological roles of arthropods in dead woody materials of ponderosa pine forests, northern California

Creator:: Lemieux, Jeffrey P.
Abstract:: This dissertation describes arthropod responses to and effects on decay processes in ponderosa pine, a dominant forest canopy tree in northern California. We used both descriptive and experimental field techniques to establish how arthropod assemblages depend on and are important to the disintegration of woody structures in forests of this...
Resource Type:: Dissertation
Full Text:: Ecological Roles of Arthropods in Dead Woody Materials of Ponderosa Pine Forests, Northern California

Natural enemies of native bumble bees (Hymenoptera: Apidae) in western Oregon

Creator:: Maxfield-Taylor, Sarah A.
Abstract:: Bumble bees (Hymenoptera: Apidae) are important native pollinators in wild and agricultural systems, and are one of the few groups of native bees commercially bred for use in the pollination of a range of crops. In recent years, declines in bumble bees have been reported globally. One factor implicated in...
Resource Type:: Masters Thesis
Full Text:: bees (Hymenoptera: Apidae) are important native pollinators in wild and agricultural systems, and are

Environmental impacts on native bumble bee pollinators in an agricultural landscape of western Oregon

Creator:: Skyrm, Kimberly M.
Abstract:: Bumble bees provide vital pollination services in both native and agricultural landscapes. However, in recent years, bumble bee populations have experienced global population declines. The primary causes of these declines have been attributed to the environmental impacts of pathogens, pesticide use and habitat fragmentation. While research has examined the impacts...
Resource Type:: Dissertation
Full Text:: Native Bumble Bee Pollinators in an Agricultural Landscape of Western Oregon. Abstract approved

Some observations on the life-history and bionomics of the holly scale, Aspidiotus britannicus Newst. in Oregon

Creator:: Roaf, James Richardson
Resource Type:: Masters Thesis
Full Text:: p. Ga1ian, United St&Ies Bureau ot Entomology end P.H. Timberlake, Riverside Experiment Station

Tingids of economic importance in Oregon with special reference to the western willow Tingid, Corthucha salicata Gibson

Creator:: Wong, Kwan Lun
Resource Type:: Masters Thesis
Full Text:: his indebtedness to the Oregon State Agricultural Experiment Station, and to Mr. B. G. Thompson

The commercial propogation and biological studies of two parasites of the codling moth

Creator:: Gillespie, Douglas Grayson
Resource Type:: Masters Thesis
Full Text:: Agriculture, Vernon, B. C., Canada; Leroy Childs, superintendent of the Hood River experiment station, Hood

Digonichaeta setipennis Fall : a Tachinid parasite of the European earwig, with a study of its introduction, biology and laboratory methods used in rearing in Oregon

Creator:: Dimick, Roland Eugene, 1900-
Resource Type:: Masters Thesis
Full Text:: State Agricultural Experiment Station, made arrazigents with Dr. A. D. Imrns, Chief Entomologist of

Life history and habits of the strawberry crown-moth Aegeria rutilans

Creator:: Hills, Orin A.
Resource Type:: Masters Thesis
Full Text:: proect of the Oron Experiment Station. lt is the object of this paper to present the results of these

The European earwig, its life history, habits and natural enemies

Creator:: Stearns, Howard Cecil
Resource Type:: Masters Thesis
Full Text:: - ties; they worked through Dr. Howard ano the Oregon Experiment Station in getting in touch with

ScholarsArchive@OSU

A review of the genus Torymus for Oregon and California (hymenoptera: chalcidoidea: torymidae)

Distribution and Ecological roles of arthropods in dead woody materials of ponderosa pine forests, northern California

Natural enemies of native bumble bees (Hymenoptera: Apidae) in western Oregon

Environmental impacts on native bumble bee pollinators in an agricultural landscape of western Oregon

Some observations on the life-history and bionomics of the holly scale, Aspidiotus britannicus Newst. in Oregon

Tingids of economic importance in Oregon with special reference to the western willow Tingid, Corthucha salicata Gibson

The commercial propogation and biological studies of two parasites of the codling moth

Digonichaeta setipennis Fall : a Tachinid parasite of the European earwig, with a study of its introduction, biology and laboratory methods used in rearing in Oregon

Life history and habits of the strawberry crown-moth Aegeria rutilans

The European earwig, its life history, habits and natural enemies

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