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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:: Monitoring pesticide resistance in Psylla pyricola Foerster

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:: commerical crops in the Willamette Valley, Oregon and pesticide resistance in the principal species

Characterization of strains of Scenedesmus resistant to the herbicide DCMU, (3-(3,4-dichlorophenyl)-1,1-dimethylurea)

Creator:: Smith, Muriel K.
Abstract:: Three DCMU resistant mutants of the green alga Scenedesmus obliquus D₃ are characterized. The mutants exhibit a ten fold greater resistance to DCMU than the wild type strain; this is comparable to the level of DCMU resistance detected in other DCMU resistant algae. In whole cell reactions, as well as...
Resource Type:: Masters Thesis
Full Text:: exhibit a ten fold greater resistance to DCMU than the wild type strain; this is comparable to the level

Detection and characterization of resistance to pesticides in codling moth, Cydia pomonella L. from Oregon

Creator:: Arshad, Muhammad, 1958-
Abstract:: Toxicological studies were carried out to evaluate the susceptibility of codling moth, Cydia pomonella L. to different insecticides. Bioassay procedures for adults and larvae were standardized in terms of posttreatment holding and temperature, age and sex of insects, insecticide formulations and selection of a reference strain. This study detected a...
Resource Type:: Masters Thesis
Full Text:: Detection and characterization of resistance to pesticides in

Monitoring insecticide resistance of the western tentiform leafminer Phyllonorycter elmaella (Doganlar and Mutuura) (Lepidoptera: Gracillariidae) in northern Oregon

Creator:: Shearer, Peter W.
Resource Type:: Masters Thesis
Full Text:: Monitoring Insecticide Resistance of the Western Tentiform

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:: Effects of Early Season Immigration on Acaricide Resistance

A novel apparatus for estimating pesticide volatility from spray droplets

Creator:: Poel, Jeff D.
Resource Type:: Masters Thesis
Full Text:: Pesticide Volatility from Spray Droplets Abstract approved: Empirical data regarding the evaporative flux

The influence of certain respiratory inhibitors and other chemicals on the integrated metabolism of the gray garden slug, Deroceras reticulatus (Muller)

Creator:: White, Grant Melvin
Resource Type:: Masters Thesis
Full Text:: preventing a pesticide from reaching its site of action. If the production of slime is a protective

Organic pesticide modification of the species interactions in an annual plant community

Creator:: Pfleeger, Thomas G.
Resource Type:: Masters Thesis
Full Text:: Organic pesticide modification of the species

Chemical and environmental factors affecting pesticide volatilization from turfgrass

Creator:: Conway, Michael S.
Abstract:: Volatile loss rates of pesticides from turfgrass were measured using the Backward-Time Lagrangian Stochastic Dispersion model (Flesch et al., 1995). Solar radiation, ambient temperature, surface temperature, relative humidity, wind direction, and wind speed were monitored continuously. Growth regulator was applied to the turf plot several days before pesticide application to...
Resource Type:: Masters Thesis
Full Text:: .................................................... 87 4 INCORPORATION OF AERODYNAMIC RESISTANCE THEORY TO MODEL PESTICIDE VOLATILIZATION FROM TURFGRASS

ScholarsArchive@OSU

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

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

Characterization of strains of Scenedesmus resistant to the herbicide DCMU, (3-(3,4-dichlorophenyl)-1,1-dimethylurea)

Detection and characterization of resistance to pesticides in codling moth, Cydia pomonella L. from Oregon

Monitoring insecticide resistance of the western tentiform leafminer Phyllonorycter elmaella (Doganlar and Mutuura) (Lepidoptera: Gracillariidae) in northern Oregon

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

A novel apparatus for estimating pesticide volatility from spray droplets

The influence of certain respiratory inhibitors and other chemicals on the integrated metabolism of the gray garden slug, Deroceras reticulatus (Muller)

Organic pesticide modification of the species interactions in an annual plant community

Chemical and environmental factors affecting pesticide volatilization from turfgrass

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