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Prey-stage preference in phytoseiid mites

Creator:: Blackwood, J. Scott
Abstract:: Knowledge of how individual organisms behave in their environment can provide a greater understanding of population dynamics. In a predator-prey system, the choices made by predators when foraging for prey are important aspects of behavior. Particularly in the case of a stage-structured prey population, how the predator selects prey stages...
Resource Type:: Dissertation
Full Text:: preference in phytoseiid mites. Abstract approved: Brian A. Croft Knowledge of how individual organisms

Ambulatory and aerial dispersal among specialist and generalist phytoseiid mites

Creator:: Jung, Chuleui
Abstract:: Specialist and generalist phytoseiid mites are widely used for biological control of spider mites. Understanding dispersal attributes of these mites is important to implementing more stable, cost-efficient integrated pest management. In this regard, we studied dispersal of phytoseiid mites from a local ambulatory phase of movement within a prey patch...
Resource Type:: Dissertation
Full Text:: Redacted for Privacy Redacted for Privacy ACKNOWLEDGEMENTS Dr. Brian A. Croft deserves special

Jerking behavior among phytoseiid mite species (Acari: Phytoseiidae)

Creator:: Blackwood, J. Scott
Abstract:: Jerking, which we defined as a pronounced and often repeated lunging of the entire body, was studied in larvae among seven species of phytoseiid mites, and in the nymphal stages of Neoseiulus fallacis (Garman). This behavior was observed in all active immature stages of N. fallacis, and in larvae of...
Resource Type:: Masters Thesis
Full Text:: : Phytoseiidae). Abstract approved: Brian A. Croft Jerking, which we defined as a pronounced and often

Biological control of spider mites (Acari: Tetranychidae) on grape emphasizing regional aspects

Creator:: Prischmann, Deirdre A.
Abstract:: During summer of 1998 and 1999, 34 and 10 vineyard sites, respectively, were sampled to assess spider mite pests and associated biological control by phytoseiid mites. Vineyards studied spanned five major valleys in western Oregon where grape production occurs. Leaf samples were taken from site perimeters and centers. One leaf...
Resource Type:: Masters Thesis
Full Text:: Mites (Acari: Tetranychidae) on Grape Emphasizing Regional Aspects. Abstract approval: ,/l' Brian A

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:: : Phytoseiidae) in Ornamental Nursery Systems. //") / ,/ / Abstract app / / Brian / We identified and

Spatial patterns of predaceous and phytophagous apple mites (Acari : Eriophyidae, phytoseiidae, Stigmaeidae, Tetranychidae) : intra- and interspecific relationships

Creator:: Slone, Daniel H.
Abstract:: Aggregation and species association of 9 species of phytophagous and predaceous mites were studied for 6 yr in an orchard with 100, 2 m tall 'Red Delicious' apple trees. To quantify aggregation, a method was developed that is powerful, and easily interpreted. It relates the proportion of habitat occupied to...
Resource Type:: Dissertation
Full Text:: approved: Brian A. Croft Aggregation and species association of 9 species of phytophagous and predaceous

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:: and Apple Plant Systems. Abstract approval: Brian A. Croft Intra- and interplant movement and

Assessing the impact of microbial pesticides on nontarget insects : laboratory versus field tests

Creator:: James, Rosalind R.
Resource Type:: Dissertation
Full Text:: : Brian A. Croft Many entomopathogenic fungi that are used as microbial pest control agents (MPCAs

Effects of Bacillus thuringiensis toxins in transgenic plants on the biology of the non-target, soil inhabiting arthropods, Folsomia candida (Collembola: Isotomidae) and Oppia nitens (Acari: Orbatidae)

Creator:: Yu, Lian, 1965-
Resource Type:: Masters Thesis
Full Text:: (Collembola: Isotomidae) and Oppia nitens (Acari: Orbatidae). Abstract approved: Brian A. Croft h E. Berr

Biological control of Tetranychus urticae Koch in hops by phytoseiid mites : feasibility, spatial aspects of interactions, and management

Creator:: Strong, Willard Billings, 1959-
Resource Type:: Dissertation
Full Text:: . Abstract approved: Brian A. Croft Densities and damage by Tetranychus urticae Koch (TSSM) and levels of

ScholarsArchive@OSU

Prey-stage preference in phytoseiid mites

Ambulatory and aerial dispersal among specialist and generalist phytoseiid mites

Jerking behavior among phytoseiid mite species (Acari: Phytoseiidae)

Biological control of spider mites (Acari: Tetranychidae) on grape emphasizing regional aspects

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

Spatial patterns of predaceous and phytophagous apple mites (Acari : Eriophyidae, phytoseiidae, Stigmaeidae, Tetranychidae) : intra- and interspecific relationships

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

Assessing the impact of microbial pesticides on nontarget insects : laboratory versus field tests

Effects of Bacillus thuringiensis toxins in transgenic plants on the biology of the non-target, soil inhabiting arthropods, Folsomia candida (Collembola: Isotomidae) and Oppia nitens (Acari: Orbatidae)

Biological control of Tetranychus urticae Koch in hops by phytoseiid mites : feasibility, spatial aspects of interactions, and management

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