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Interspecific predation and cannibalism of immatures by adult female Metaseiulus occidentalis, Typhlodromus pyri (Acari: Phytoseiidae) and Zetzellia mali Schueten (Acari: Stigmaeidae)

Creator:: MacRae, Ian Vance, 1958-
Abstract:: Interspecific predation and cannibalism and associated rates of oviposition were assessed for adult female Metaseiulus occidentalis (Nesbitt) and Typhlodromus pyri Scheuten when provided non-limiting amounts of either eggs, larvae, protonymphs, or deutonymphs. Tests with all four stages of phytoseiids and larvae of Tetranychus urticae Koch were carried out at 25°C....
Resource Type:: Dissertation
Full Text:: , Croft et al. 1992). Because T. pyri can actively forage on spider mites at 12.5°C, a decrease in prey

Responses of males to a pheromone blend of female Oriental fruit moth with and without E8, E10-dodecadien-1-ol, a pheromone component of codling moth (Lepidoptera: Tortricidae)

Creator:: Allred, Darin B.
Abstract:: E8,E10-dodecadien-1-ol, the primary component of the female sex pheromone of codling moth, Cydia pomonella L., has no attraction to male Oriental fruit moth (OFM), C. molesta (Busck). However, this compound when added to the OFM pheromone blend of Z8-dodecenyl acetate (85.5%), E8-dodecenyl acetate (5.5%), and Z8- dodecen -1 -ol (9.0%),...
Resource Type:: Dissertation
Full Text:: Component of Codling Moth (Lepidoptera: Tortricidae) Abstract approved: Brian A. Croft E8,E10-dodecadien

AppleMgr, a prototype decision aid for apple pest management

Creator:: Haley, Sue
Abstract:: Computer decision aids can help integrate and apply diverse sources of information and expertise to problems of integrated pest management (IPM) in agriculture and forestry. AppleMgr combines a rule-based expert system with databases and spreadsheets in a prototype decision aid intended to be expanded and modified for use by extension...
Resource Type:: Dissertation
Full Text:: to producing the AppleMgr decision aid. The project was initially proposed by Brian Croft and

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:: critical for reliable assay results and were standardized at 15.6 °C, 60% RH, and a light-dark cycle of

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

Use of a geographical information system to modify pheromone trap-based predictions of Helicoverpa zea (Boddie) damage

Creator:: Drapek, Raymond James
Abstract:: The GRASS (V. 4.0) geographical information system (GIS) was used to test the hypothesis that pheromone trap based predictions of Helicoverpa zea (Boddie) damage in processed sweet corn could be improved by considering spatial patterns of corn plantings and wind blocking features around the trap. Wind blocking features include: tree...
Resource Type:: Dissertation
Full Text:: . Abstract Approved: Brian Croft Glenn Fisher The GRASS (V. 4.0) geographical information system (GIS) was

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:: conditions of26:21 (±5)O C day:night (D:N), 75% (±1O) RH and a photoperiod of 16:8 L:D h (Strong and Croft

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

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

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

ScholarsArchive@OSU

Interspecific predation and cannibalism of immatures by adult female Metaseiulus occidentalis, Typhlodromus pyri (Acari: Phytoseiidae) and Zetzellia mali Schueten (Acari: Stigmaeidae)

Responses of males to a pheromone blend of female Oriental fruit moth with and without E8, E10-dodecadien-1-ol, a pheromone component of codling moth (Lepidoptera: Tortricidae)

AppleMgr, a prototype decision aid for apple pest management

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

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

Use of a geographical information system to modify pheromone trap-based predictions of Helicoverpa zea (Boddie) damage

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

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

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

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

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