Index Catalog // ScholarsArchive@OSU

Creator:: Foster, Lee
Abstract:: Understanding the effects of habitat disturbance on a species' habitat selection patterns, and demographic rates, is essential to projecting the trajectories of populations affected by disturbance, as well as for determining the appropriate conservation actions needed to maintain those populations. Greater sage-grouse (Centrocercus urophasianus) is a species of conservation concern...
Resource Type:: Masters Thesis
Full Text:: wouldn’t have been nearly as much fun. Thank you to my Graduate Committee: Drs. Dave Pyke, and Jim Rivers

Creator:: Katundu, Juma
Abstract:: Levels of resistance to six selected insecticides of eleven field populations of the filbert aphid Mvzocallis coryli (Goetze) were determined by using the leaf-dip residue technique. Test insecticides included compounds widely used in commercial filbert orchards, namely, carbaryl, diazinon, endosulfan, phosalone, fenvalerate and oxydemetonmethyl. Aphid samples were collected within a...
Resource Type:: Masters Thesis
Full Text:: P. Paine for serving on my committee. I thank Jim Calkin, Steve Booth and Russell Messing for

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:: recommends an action threshold of 20-40 aphids per leaf (Calkin et al. 1985) for applying control

Creator:: Messing, Russell H.
Abstract:: Commercial filbert orchards throughout the Willamette Valley were surveyed for natural enemies of the filbert aphid, Myzocallis coryli (Goetze). A large number of predaceous insects were found to prey upon M. coryli, particularly members of the families Coccinellidae, Miridae, Chrysopidae, Hemerobiidae, and Syrphidae. Also, a parasitic Hymenopteran (Mesidiopsis sp.) and...
Resource Type:: Masters Thesis
Full Text:: author wishes to express gratitude to Stephan Blake, Gerasimus Cassis, Jim Calkin, Alice Kelly, and Mark

Creator:: Brenner, Loretta K.
Resource Type:: Masters Thesis
Full Text:: assistance, and general good will, I thank Jack Pinkerton, Nance Widmer, Lori Wiles, Sue Bell, Jim Calkin

Creator:: Nuss, Meagan Louise
Abstract:: Oregon has been moving forward with biomass energy development. Large-scale biomass power and cogeneration (producing heat and electricity) have been the focus of the last twenty-five years, while small-scale thermal bioenergy installations (producing heat) have dramatically increased during the last decade. In eastern Oregon, bioenergy is closely linked to restoration...
Resource Type:: Masters Thesis
Full Text:: and opinions for the record: Sally Bartlett, Mike Billman, Jim Bishop, Boyd Britton, Nils

Creator:: Talkington, Michael Lee
Abstract:: Studies were conducted in the Willamette Valley of western Oregon to evaluate the effects of plowing (7.5-15 cm deep) and disking (5-10 cm deep) in peppermint, Mentha piperita L., on the following factors: 1) emergence of adult "mint root borer", Fumibotys fumalis Guenée; 2) suppression of common groundsel, Senecio vulgaris...
Resource Type:: Masters Thesis
Full Text:: without which this study would not have been possible. Special thanks to Tom Rien, Jim Catkin, Gary

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