Index Catalog // ScholarsArchive@OSU

The biology and seasonality of the parasitiod Trioxys pallidus Haliday in western Oregon

Creator:: Cohn, Judy L.
Abstract:: Seasonal synchrony between the filbert aphid, Myzocallis coryli (Goetze) and its newly introduced parasitoid Trioxys pallidus Haliday was examined in the field to evaluate the effectiveness of parasitoid based biological control in filbert orchards of Oregon. Fieldemergence observations showed that 50% eclosion of the aphid occurred 14 days before that...
Resource Type:: Masters Thesis
Full Text:: parasitoid based biological control in filbert orchards of Oregon. Field- emergence observations showed

Classical biological control of the filbert aphid, Myzocallis coryli (Goetze) (Homoptera:Aphididae) in western Oregon

Creator:: Messing, Russell H.
Abstract:: A classical biological control project was undertaken against the filbert aphid, Myzocallis coryli (Goetze), in western Oregon. Hazelnut orchards in Spain, France, and Italy were searched for natural enemies of the aphid, and a parasitic wasp, Trioxys pallidus Haliday, was imported, quarantined, mass-reared, and released in Oregon orchards. The wasp...
Resource Type:: Dissertation
Full Text:: : Classical Biological Control of the Filbert Aphid, Myzocallis coryli (Goetze), in Western Oregon. Abstract

Biological control of insects and weeds in Oregon

Creator:: Ritcher, Paul O.
Abstract:: Published April 1966. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: 'town, New Jersey, and Albany, California. 64. Biological Control of Insects and Weeds in Oregon In

Biological control of purple loosestrife Lythrum salicaria by two chrysomelid beetles Galerucella pusilla and G. calmariensis

Creator:: Schooler, Shon
Abstract:: In the first part of this study we monitored the development of biological control of purple loosestrife Lythrum salicaria over a six-year period at Morgan Lake in western Oregon. In 1992, two beetles, Galerucella pusilla and G. calmariensis (Coleoptera: Chrysomelidae), were released to control the wetland weed at this test...
Resource Type:: Masters Thesis
Full Text:: . (Lythraceae) at a local test site in western Oregon. We monitored the progress of biological weed control

Effects of the biological control agent, Tetranychus lintearius, on its host, Ulex europaeus

Creator:: Rice, Ben (Benjamin Harrison)
Abstract:: Invasive plants threaten ecosystems and economies worldwide. Classical biological control, introduction of specialist herbivores on invasive plants, is one of the tools employed to reduce the impact of invasive plants. Gorse, Ulex europaeus L. (Fabaceae), an invasive leguminous shrub, is the target of a biological control program in Oregon. The...
Resource Type:: Masters Thesis

An evaluation of biological control of Linaria dalmatica with Mecinus janthinus in Oregon

Creator:: Park, Alexander
Abstract:: Dalmatian toadflax (Linaria dalmatica) has become a prolific invasive plant of rangelands in Oregon since its arrival in the early 20th century. In 2001, the Oregon Department of Agriculture initiated a release program promoting the distribution of the stem-boring weevil, Mecinus janthinus as classical biological control agent to reduce densities...
Resource Type:: Masters Thesis
Full Text:: Biological Control of Linaria dalmatica with Mecinus janthinus in Oregon by Alexander Park

Phenology, Host-Plant Resistance, and Biological Control of Stephanitis pyrioides in Oregon

Creator:: Flores, Salvador M.
Abstract:: The azalea lace bug (Stephanitis pyrioides Scott) is a recently detected invasive pest to the Pacific Northwest and has become a major concern in Oregon. It feeds on azaleas as well as rhododendrons causing stippling on the top side of leaves. The damage is aesthetically displeasing and affects plant vigor...
Resource Type:: Masters Thesis
Full Text:: . Title: Phenology, Host-Plant Resistance, and Biological Control of Stephanitis pyrioides in Oregon

Ecology of the predatory mite, Pergamasus quisquiliarum Canestrini (Acari: Mesostigmata)

Creator:: Groth, Eric M.
Abstract:: Pergamasus quisquiliarum Canestini is a polyphagous predatory mite that has been shown to feed on the economically important arthropod, Scutigerella immaculata Newport (Symphyla: Scutigerellidae), Collembola, Diptera larvae, Enchytraeid worms, and miscellaneous other soil organisms. This study examined the feeding behavior of P. quisquiliarum, the effects of cover cropping and tillage...
Resource Type:: Masters Thesis
Full Text:: . Biological control of the garden symphylan is another area that warrants further research (Berry 1973

Epiphytic yeasts isolated from apple leaves to control of gray and blue mold fruit rots of apple

Creator:: Falconi, Cesar E.
Abstract:: Eight phylloplane yeasts were isolated from backyard apple trees in Corvallis, OR. Yeast isolates were classified to genus or species level. All isolates were tested in vitro for antagonistic activity against the postharvest pathogens Botrytis cinerea and Penicillium expansum. Of these isolates, Aureobasidium pullulans, Sporobolomyces roseus Rhodotorula sp., consistently reduced...
Resource Type:: Masters Thesis
Full Text:: control 2 Biological control -4 Modes of action of antagonists 5 Initial selection of antagonists 6

The potential of endemic natural enemies to suppress pear psylla, Cacopsylla pyricola Förster, in the Hood River Valley, Oregon

Creator:: Booth, Steven R.
Abstract:: This thesis addressed the potential of endemic predaceous and parasitic arthropods of the Hood River Valley, Oregon to suppress the pear psylla, Cacopsylla pyricola F8rster. Natural enemies adequately suppressed psylla in three of seven unsprayed orchards of differing vegetational settings, orchard age, and size. Relatively few psylla natural enemies dispersed...
Resource Type:: Dissertation
Full Text:: psylla immatures from commercial orchards where biological control was successfully demonstrated were

ScholarsArchive@OSU

The biology and seasonality of the parasitiod Trioxys pallidus Haliday in western Oregon

Classical biological control of the filbert aphid, Myzocallis coryli (Goetze) (Homoptera:Aphididae) in western Oregon

Biological control of insects and weeds in Oregon

Biological control of purple loosestrife Lythrum salicaria by two chrysomelid beetles Galerucella pusilla and G. calmariensis

Effects of the biological control agent, Tetranychus lintearius, on its host, Ulex europaeus

An evaluation of biological control of Linaria dalmatica with Mecinus janthinus in Oregon

Phenology, Host-Plant Resistance, and Biological Control of Stephanitis pyrioides in Oregon

Ecology of the predatory mite, Pergamasus quisquiliarum Canestrini (Acari: Mesostigmata)

Epiphytic yeasts isolated from apple leaves to control of gray and blue mold fruit rots of apple

The potential of endemic natural enemies to suppress pear psylla, Cacopsylla pyricola Förster, in the Hood River Valley, Oregon

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