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Biological control agents and where to find them

Creator:: Oregon State University. Extension Service, Dreves, Amy J., and Fisher, Glenn C.
Abstract:: Published September 1989. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: CONTROL AGENTS AND WHERE TO FIND THEM ORgGON STATG UNIVERSITY EXTENSION SERVICE Biological

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:: Biological control of spider mites by the predatory mite

Characteristics of Typhlodromus americanus Chant and Yoshida-Shaul (Acari: phytoseiidae) as a biological control agent of Oligonychus ununguis (Jacobi) (Acari: tetranychidae)

Creator:: Horton, Rene N.
Abstract:: The life history, temperature, humidity, and feeding requirements of the phytoseiid predator mite, Typhlodromus americanus Chant and Yoshida-Shaul were tested in the laboratory. Occurance of the mite in the field during different times of the year was investigated as well. Effects of temperature and humidity on egg hatch, the feeding...
Resource Type:: Masters Thesis
Full Text:: different food sources were investigated in the laboratory. The use of the mite as a biological control

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:: genus Euseius are type IV. Spider mite biological control systems that include specialist type

Ecology of the predatory mite, Pergamasus quisquiliarum Canestrini (Acari: Mesostigmata)

Creator:: Groth, Eric M.
Abstract:: Pergamasus quisquiliarum Canestini is a polyphagous predatory mite that has been shown to feed on the economically important arthropod, Scutigerella immaculata Newport (Symphyla: Scutigerellidae), Collembola, Diptera larvae, Enchytraeid worms, and miscellaneous other soil organisms. This study examined the feeding behavior of P. quisquiliarum, the effects of cover cropping and tillage...
Resource Type:: Masters Thesis
Full Text:: potential of this mite as a biological control agent against symphylans in the field is still implied by

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:: biological control agents of Tetranychus spider mites in agricultural settings worldwide. Phytoseiid species

Biological control of Tetranychus urticae (Koch) on peppermint by Neoseiulus fallacis (Garman) : density relationships, overwintering, habitat manipulation and pesticide effects

Creator:: Morris, Mark Alan, 1954-
Abstract:: Several aspects affecting population trends and overwintering of Neoseiulus fallacis (Garman) on peppermint were examined. Neoseiulus fallacis was the most abundant phytoseiid predator mite found in peppermint surveys throughout the western U.S. Results of pesticide exclusion and cage studies showed that N. fallacis controlled Tetranychus urticae (Koch) on peppermint in...
Resource Type:: Dissertation

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:: assess spider mite pests and associated biological control by phytoseiid mites. Vineyards studied

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:: than does N. fallacis. Spatial patterns of dispersal and biological control of pest mites are

Comparative emigration, immigration, and colonization of apple by Metaseiulus occidentalis Nesbitt and Typhlodromus pyri Scheuten (Acarina: Phytoseiidae)

Creator:: Dunley, John E.
Abstract:: Dispersal and colonization of young potted apple trees by the spider-mite predators Metaseiulus occidentalis Nesbitt and Typhlodromus pyri Scheuten were studied in the Hood River Valley of Oregon. Experimental mini-orchards of 10 four-year old potted apple trees were established at distances of 0, 10, and 100 m downwind from commercial...
Resource Type:: Masters Thesis
Full Text:: orchard for control of non-mite pests was similar. All orchards had a history of biological control of

Enhancing pest mite biological control by Typhlodromus pyri (Acari: Phytoseiidae) in Pacific Northwest vineyards

Creator:: Gadino, Angela Noelle
Abstract:: The predatory mite Typhlodromus pyri (Acari: Phytoseiidae) is the predominant species in cool climate Pacific Northwest vineyards and a principal predator of pest mites including the grapevine rust mite Calepitrimerus vitis (Acari: Eriophyidae). In recent years vineyards have been experiencing C. vitis population outbreaks leading to increased economic damage from...
Resource Type:: Dissertation
Full Text:: Entomology presented on December 8, 2010. Title: Enhancing Pest Mite Biological Control by Typhlodromus

Tactics for enhancing conservation biological control of twospotted spider mites, Tetranychus urticae Koch, in Pacific Northwest hop yards

Creator:: Woods, Joanna L.
Abstract:: The twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), is a worldwide pest of numerous agronomic and horticultural plants. Conservation biological control of this pest can be unreliable due to asynchrony of natural enemies and certain horticultural practices that have a direct or indirect affect on natural enemies and the...
Resource Type:: Masters Thesis
Full Text:: Biological Control of Tetranychus urticae Predators of twospotted spider mite consist of many generalist

Evaluating compatibility of horticultural oils and sulfur with vineyard IPM

Creator:: Gadino, Angela Noelle, Walton, Vaughn M., Dreves, Amy J., Jones, Gregory V., Brewer, Linda J., and Oregon State University. Extension Service
Abstract:: Typhlodromus pyri (T. pyri) is a beneficial insect and key predator of Calepitrimerus vitis (C. vitis) in Pacific Coast vineyards. C. vitis is closely associated with short-shoot syndrome. The impact of horticultural (paraffinic) oils and sulfur on T. pyri is presented here. This publication contributes to integrated pest management and...
Resource Type:: Technical Report
Full Text:: ) oils and sulfur are widely used in vineyards and other perennial cropping systems for control of

ScholarsArchive@OSU

Biological control agents and where to find them

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

Characteristics of Typhlodromus americanus Chant and Yoshida-Shaul (Acari: phytoseiidae) as a biological control agent of Oligonychus ununguis (Jacobi) (Acari: tetranychidae)

Ambulatory and aerial dispersal among specialist and generalist phytoseiid mites

Ecology of the predatory mite, Pergamasus quisquiliarum Canestrini (Acari: Mesostigmata)

Prey-stage preference in phytoseiid mites

Biological control of Tetranychus urticae (Koch) on peppermint by Neoseiulus fallacis (Garman) : density relationships, overwintering, habitat manipulation and pesticide effects

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

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

Comparative emigration, immigration, and colonization of apple by Metaseiulus occidentalis Nesbitt and Typhlodromus pyri Scheuten (Acarina: Phytoseiidae)

Enhancing pest mite biological control by Typhlodromus pyri (Acari: Phytoseiidae) in Pacific Northwest vineyards

Tactics for enhancing conservation biological control of twospotted spider mites, Tetranychus urticae Koch, in Pacific Northwest hop yards

Evaluating compatibility of horticultural oils and sulfur with vineyard IPM

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