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Monitoring pesticide resistance in Psylla pyricola Foerster from western Oregon pear orchards

Creator:: Follett, Peter A.
Abstract:: A modified slide-dip bioassay was used to survey and establish baseline resistance levels in Psylla pyricola Foerster from western Oregon orchards to four pesticides. Orchards selected in the Hood River, Rogue River and Willamette Valleys spanned a wide range of environmental and management conditions. During the study period of 1982-1983,...
Resource Type:: Masters Thesis
Full Text:: Acknowledgements I would first like to thank Dr. Brian Croft for providing me with momentum, support and

The SELCTV database : the susceptibility of arthropod natural enemies to agricultural pests to pesticides

Creator:: Theiling, Karen M.
Abstract:: Documentation of the side effects of pesticides on arthropod natural enemies has expanded rapidly since the 1950's as part of an increase in non-target side effects literature. Most reviews have been based on empirical analysis of selected literature. The SELCTV database was developed to make a larger information base accessible...
Resource Type:: Masters Thesis
Full Text:: literature base of at least 2000 publications (Croft, personal communication). Studies of pesticide side

Chemotherapeutic and nontarget side-effects of benomyl to the orange tortrix (Argyrotaenia citrana) and the braconid endoparasite Apanteles aristotelia

Creator:: Sewall, David K.
Abstract:: Benomyl, a systemic benzimidazole fungicide was incorporated into artificial diet and evaluated for its oral toxicity to nonparasitized and parasitized third instar orange tortrix larvae, Argyrotaeniae citrana (Fernald) and its food chain toxicity via the host to the solitary braconid endoparasite Apanteles aristoteliae Vierek. Concentrations of benomyl ≤ 300 ppm...
Resource Type:: Masters Thesis
Full Text:: on the temperature. Although development will occur at extremes of 7.2°C (44.9°F) and 29.4°C (84.9

Effects of early season immigration on acaricide resistance of Tetranychus urticae Koch on strawberry in the California Pajaro and Salinas valleys

Creator:: Miller, Richard W. (Richard William), 1958-
Abstract:: In the Pajaro Valley near Watsonville, California, twospotted spider mite (Tetranychus urticae Koch) populations were surveyed in 1983 and '84 to detect the influence of immigrants from nursery plants or surrounding vegetation on subsequent resistance development to cyhexatin and formetanate in strawberry fields. Susceptible mites (cyhexatin LC50 = 0.0039 %...
Resource Type:: Masters Thesis
Full Text:: privacy Brian A. Croft In the Pajaro Valley near Watsonville, California, twospotted spider mite

Phytoseiid mites (Parasitiformes:Phytoseiidae) of commerical crops in the Willamette Valley, Oregon and pesticide resistance in the principal species Typhlodromus pyri Scheuten

Creator:: Hadam, John J.
Resource Type:: Masters Thesis
Full Text:: et al., 1979). Integrated mite management programs developed in California (Croft & Barnes, 1971

Novel icosanoids from the red marine alga Farlowia mollis

Creator:: Solem, Michele Lee
Abstract:: Farlowia mollis is a marine red alga that grows in the intertidal region along the coast of Oregon. We began studying the chemistry of this alga after a survey of Oregon seaweeds revealed possibly interesting chemistry and antimicrobial activity in its crude organic extract. Over the past three years the...
Resource Type:: Masters Thesis
Full Text:: fatty acid. For instance, lipoxygenase-1 from soybeans, will oxygenate a C-18 fatty acid at position 13

Management of variegated cutworm in peppermint

Creator:: Coop, Leonard Bryan
Abstract:: A pest management program for variegated cutworm (VC), Peridroma saucia (Hubner), in Oregon peppermint was developed based on studies of pheromone trapping, sampling methods, and economic thresholds. Pheromone traps effectively trapped VC males and were used to reflect development and oviposition trends. Trap height was linearly correlated to moth catch...
Resource Type:: Dissertation
Full Text:: throughout my course and thesis work. My committee, Dr. Jeff Miller, Dr. Brian Croft, Dr. Dave Hannaway, Dr

Neuronal and hormonal control of the vascular system of the marine mollusc, Aplysia californica

Creator:: Ligman, Scott H.
Abstract:: The vascular system of Aplysia californica is a simple visceromotor system with three main arteries innervated by a small pool of identified neurons. I used this system to study the functions of neuropeptide transmitters and their actions on neural and muscle tissues. A central finding of this study is that...
Resource Type:: Dissertation
Full Text:: the members of my doctoral committee: Chris Bayne, Brian Croft, Frank Moore, John Morris, Tom Murray

Effects of dietary selenium and fish oil (MaxEPA) on arachidonic acid metabolism and hemostatic function in the rat

Creator:: Song, Jihyun
Abstract:: The purpose of this study was to investigate whether the beneficial effects which the consumption of fish oil imparts on hemostatic function can be modified by the level of dietary selenium. Male Sprague Dawley rats were fed for eight weeks semipurified diets containing 7% corn oil (by weight) or 5.5%...
Resource Type:: Dissertation
Full Text:: conditions. The present study will investigate whether the beneficial effects which consumption of fish

Orange tortrix : parasitoid complex and thermal constants for egg hatch

Creator:: Coop, Leonard Bryan
Abstract:: An investigation was conducted in 1980 and 1981 on the larval parasitoid complex of the orange tortrix, Argyrotaenia citrana (Fern.), a major contaminant in cane fruits (Rubus spp.) in the Pacific Northwest. A total of 13 parasitoid species were reared from 1,350 larvae predominantly collected from red raspberries in western...
Resource Type:: Masters Thesis
Full Text:: in caneberries, overwintering habits, developmental rates and adult longevity at 20°C. The

ScholarsArchive@OSU

Monitoring pesticide resistance in Psylla pyricola Foerster from western Oregon pear orchards

The SELCTV database : the susceptibility of arthropod natural enemies to agricultural pests to pesticides

Chemotherapeutic and nontarget side-effects of benomyl to the orange tortrix (Argyrotaenia citrana) and the braconid endoparasite Apanteles aristotelia

Effects of early season immigration on acaricide resistance of Tetranychus urticae Koch on strawberry in the California Pajaro and Salinas valleys

Phytoseiid mites (Parasitiformes:Phytoseiidae) of commerical crops in the Willamette Valley, Oregon and pesticide resistance in the principal species Typhlodromus pyri Scheuten

Novel icosanoids from the red marine alga Farlowia mollis

Management of variegated cutworm in peppermint

Neuronal and hormonal control of the vascular system of the marine mollusc, Aplysia californica

Effects of dietary selenium and fish oil (MaxEPA) on arachidonic acid metabolism and hemostatic function in the rat

Orange tortrix : parasitoid complex and thermal constants for egg hatch

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