Index Catalog // ScholarsArchive@OSU

Phenology and monitoring of the cabbage maggot, Delia radicum (L.), in brassica root crops

Creator:: Dreves, Amy J.
Abstract:: In Oregon’s northern Willamette Valley, cabbage maggot (CM), Delia radicum (L.) (Diptera: Anthomyiidae) often renders Brassica root crops unmarketable. Scheduled insecticides are the only current control. Studies were conducted to: 1) describe and characterize spring emergence of CM flies and their seasonal flight activity relative to degree-day (DD) accumulations; 2)...
Resource Type:: Dissertation
Full Text:: (.). ......................................................................8 3.1. Map offield study sites in northern Wilamete Valley, Oregon (Clackamas and Marion counties

Walnut : 2017 pest management guide for the Willamette Valley

Creator:: Wiman, Nik G., Pscheidt, Jay W., Peachey, Ed, and Oregon State University. Extension Service
Abstract:: Revised April 2017. Recommends pest management practices for walnut.
Resource Type:: Technical Report
Full Text:: Willamette Valley · EM 8421 · page 2 Walnut Pest Control Recommendations Use only one material except where

Apple : 2018 pest management guide for the Willamette Valley

Creator:: Wiman, Nik G., Pscheidt, Jay W., Peachey, Ed, and Oregon State University. Extension Service
Abstract:: Revised April 2018. Recommends pest management practices for apple.
Resource Type:: Technical Report
Full Text:: Willamette Valley · EM 8418 · page 3 CONTINUED—Delayed Dormant (Stages 1–2) Pest or disease/ Material

Cherry : 2019 pest management guide for the Willamette Valley

Creator:: Wiman, Nik G., Pscheidt, Jay W., Moretti, Marcelo L., and Oregon State University. Extension Service
Abstract:: The information in this pest management guide is valid for 2019. Trade-name products and services are mentioned as illustrations only. This does not mean that the Oregon State University Extension Service either endorses these products and services or intends to discriminate against products and services not mentioned. Due to constantly...
Resource Type:: Technical Report
Full Text:: Willamette Valley · EM 8329 · page 9 CONTINUED—Late Spring and Summer Pest or disease/ Material Active

Enhancing the predatory potential of hoverflies on aphids in Oregon broccoli fields with floral resources

Creator:: Ambrosino, Mario D.
Abstract:: Four key aspects of the relationship between predatory hoverflies and the aphid pest Brevicoryne brassicae L. on broccoli were investigated in the Willamette Valley, Oregon USA: 1) the relationship between aphid density and hoverfly oviposition, 2) the larval voracity of key hoverfly species, 3) the preferences of hoverflies and broccoli...
Resource Type:: Dissertation
Full Text:: Brevicoryne brassicae L. on broccoli were investigated in the Willamette Valley, Oregon USA: 1) the

Habitat management for beneficial insects on Willamette Valley vegetable and berry farms

Creator:: Russell, Michael C.
Abstract:: Conservation biological control involves manipulating farm landscapes or management systems to enhance populations of beneficial predators of agricultural pests. Farmscaping is one aspect of conservation biological control where predators of important pests are identified, the availability on the farm landscape of resources and habitat components needed by the beneficials to...
Resource Type:: Dissertation
Full Text:: evaluate the plant species found on Willamette valley cane berry farms and calculate the total floral

Mulching to Manage Mummy Berry of Blueberry

Creator:: Florence, Jade
Abstract:: Monilinia vaccinii-corymbosi pseudosclerotia overwinter on the soil surface and produce apothecia in early spring, providing primary inoculum for Mummy Berry Disease of blueberry. Burial under 2.5 cm of soil or the absence of light have previously been identified as critical factors preventing the development of apothecia. Mulches were applied to...
Resource Type:: Dissertation
Full Text:: collaborator field sites in the Willamette Valley. Mulch depth loss was also assessed at the end of the

New sources and linked AFLP markers for Eastern filbert blight resistance in hazelnut

Creator:: Chen, Honglin
Abstract:: Eastern filbert blight (EFB), caused by Anisogramma anomala (Peck) E. Miiller, is a devastating disease to orchards of the European hazelnut (Corylus avellana L.) in the Willamette Valley, Oregon. Host resistance is the most desirable means of disease control. Fifty-eight hazelnut accessions, including European cultivars and interspecific hybrids were evaluated...
Resource Type:: Masters Thesis
Full Text:: to orchards of the European hazelnut (Corylus avellana L.) in the Willamette Valley, Oregon. Host

Cover crop effects on root rot of sweet corn and soil properties

Creator:: Miyazoe, Mikio
Abstract:: Root rot of sweet corn in western Oregon and Washington is a significant disease that can reduce yield of intolerant cultivars of processed sweet corn by fifty percent. Root rot is caused by a complex of soilborne organisms, including Drechslera sp., Phoma terrestris, and Pythium arrhenomanes. Processors have adopted tolerant...
Resource Type:: Masters Thesis
Full Text:: cover crops in the Willamette Valley (Putnam, Oregon state Univ. disease clinic). BYDV is also an

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:: called Corylus californica), make the Willamette Valley of Oregon and the corresponding areas in

ScholarsArchive@OSU

Phenology and monitoring of the cabbage maggot, Delia radicum (L.), in brassica root crops

Walnut : 2017 pest management guide for the Willamette Valley

Apple : 2018 pest management guide for the Willamette Valley

Cherry : 2019 pest management guide for the Willamette Valley

Enhancing the predatory potential of hoverflies on aphids in Oregon broccoli fields with floral resources

Habitat management for beneficial insects on Willamette Valley vegetable and berry farms

Mulching to Manage Mummy Berry of Blueberry

New sources and linked AFLP markers for Eastern filbert blight resistance in hazelnut

Cover crop effects on root rot of sweet corn and soil properties

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

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