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Biological control of spider mites by the predatory mite Neoseiulus fallacis (Acari: Phytoseiidae) in ornamental nursery systems

Creator:: Pratt, Paul D.
Abstract:: We identified and evaluated a phytoseiid predator as a biological control agent of multiple spider mites pests that occur in ornamental nurseries. When comparing species, Neoseiulus fallacis (Garman) had a wider prey range than Galendromus occidentalis (Nesbitt), a higher probability of overwintering than Neoseiulus califomicus McGregor and was equally or...
Resource Type:: Dissertation
Full Text:: Paul D. Pratt for the degree of Doctor of Philosophy in Entomology presented on September 16. 1999

K-12 school finance reform : an Idaho case study

Creator:: Pratt, Leah
Abstract:: There have been years of stalled K-12 school finance reform efforts in Idaho, yet it was unclear what key Idaho education interest groups currently thought about how Idaho funds its public schools. Therefore, this project explored the institutional perspectives and beliefs of K-12 Idaho education stakeholders regarding the Idaho K-12...
Resource Type:: Capstone Project
Full Text:: Study by Leah Pratt A PROJECT submitted to Oregon State University

Within and between plant dispersal and distributions of adult females and immatures of Neoseiulus californicus and N. fallacis (Acari: Phytoseiidae) in bean and apple plant systems

Creator:: Pratt, Paul D. (Paul David), 1970-
Abstract:: Intra- and interplant movement and dispersal of the predator mites Neoseiulus californicus (McGregor) and Neoseiulus fallacis (Garman) were studied on both lima bean (Phaseolus lunatus L.) and apple (Malus pumila Miller) branch plant systems that were seeded with excess numbers of the spider mite Tetranychus urticae Koch. Individuals of either...
Resource Type:: Masters Thesis
Full Text:: plant systems AN ABSTRACT OF THE THESIS OF Paul D. Pratt for the degree of Master of Science in

Supporting children who struggle with self-regulation : the role of early family risk and child care quality

Creator:: Pratt, Megan E.
Abstract:: Children's early self-regulation skills have long-term implications for a variety of academic, social, and health outcomes. Unfortunately, children facing multiple family risk factors (e.g., harsh parenting, economic disadvantage) are more likely to struggle with early self-regulation. Despite early disparities in self-regulation, promising intervention evidence suggests that high quality prekindergarten experiences...
Resource Type:: Dissertation
Full Text:: Megan E. Pratt for the degree of Doctor of Philosophy in Human Development and Family Studies

Occurrence, behavior and control of Verticillium albo-atrum Reinke and Berth in small fruits

Creator:: Pratt, Michael John
Resource Type:: Dissertation
Full Text:: RFINIÇF AND BRTH. - ITtY SMALL FRUITS 'ICHAThL JOHN PRATT A THESIS submitted to OREGON STATE

The effects of various factors on the formation and fate of extranuclear chromatic bodies in Tetrahymena pyriformis

Creator:: Salamone, Michael
Abstract:: During karyokinesis in the ciliate, Tetrahymena pyriformis, strain GL-I, an extranuclear chromatin body (ECB) is frequently formed as an excluded mass between the two dividing daughter macronuclei. The formation and fate of ECB's were followed by means of Feu lgen, toluidine blue 0, and euchrysine staining and autoradiography (³H-thymidine). The...
Resource Type:: Dissertation
Full Text:: PYRIF9MIS Abstract approved: Redacted for Privacy Ernet T. DornfeldN Redacted for Privacy D. Stuart

Light-induced absorbance changes and partial reactions of photosynthesis in mutants of Scenedesmus obliquus, strain D₃

Creator:: Pratt, Lee Herbert
Abstract:: Partial reactions of photosynthesis were examined in the wild type strain and six photosynthetic mutants (8, 11, 26, 40, 50, a') of Scenedesmus obliquus, strain D₃. A reproducible procedure for the isolation of active chloroplast fragments from Scenedesmus was developed. Several chloroplast reactions were examined, as well as two in...
Resource Type:: Dissertation
Full Text:: Photosynthesis in Mutants of Scenedesmus Obliquus, Strain D3 AN ABSTRACT OF THE THESIS OF Lee Herbert Pratt

The parasitic copepods of the long-jawed rockfish, Sebastodes alutus (Gilbert)

Creator:: Wilkes, Stanley Northrup
Resource Type:: Masters Thesis
Full Text:: used for posting. Dz'. Paul L. 111g of the University of Washington examined my specimens

A survey of the helminth parasites of Leptocottus armatus armatus Girard

Creator:: Dunlap, Delpha Deane
Abstract:: Of the 100 specimens of Leptocottus armatus armatus Girard examined at the Oregon Institute of Marine Biology at Charleston, Oregon during June, July, and August, 1950, 99% were infected with helminth parasites. There was an 83% infection with Echinorhynchus gadi and a total of 1,258 individuals. There was a 16%...
Resource Type:: Masters Thesis
Full Text:: ACKNO1AILEDGENTS I vish to express my appreciation to my major professor, Dr. Ivan Pratt, for enabling me to

Parasites of the grunion, Leuresthes tenuis (Ayres)

Creator:: Olson, Andrew Clarence
Resource Type:: Dissertation
Full Text:: lrJqr Redacted for Privacy Cbefnn of Dcprr-trrot d Zmlojgr Redacted for Privacy Ahtrm of EabL

ScholarsArchive@OSU

Biological control of spider mites by the predatory mite Neoseiulus fallacis (Acari: Phytoseiidae) in ornamental nursery systems

K-12 school finance reform : an Idaho case study

Within and between plant dispersal and distributions of adult females and immatures of Neoseiulus californicus and N. fallacis (Acari: Phytoseiidae) in bean and apple plant systems

Supporting children who struggle with self-regulation : the role of early family risk and child care quality

Occurrence, behavior and control of Verticillium albo-atrum Reinke and Berth in small fruits

The effects of various factors on the formation and fate of extranuclear chromatic bodies in Tetrahymena pyriformis

Light-induced absorbance changes and partial reactions of photosynthesis in mutants of Scenedesmus obliquus, strain D₃

The parasitic copepods of the long-jawed rockfish, Sebastodes alutus (Gilbert)

A survey of the helminth parasites of Leptocottus armatus armatus Girard

Parasites of the grunion, Leuresthes tenuis (Ayres)

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