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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

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

Creator:: Hadam, John J.
Resource Type:: Masters Thesis
Full Text:: et al., 1979). Integrated mite management programs developed in California (Croft & Barnes, 1971

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:: I would first like to thank Brian Croft for support, both financial and intellectual, during the

Creator:: Calkin, James D.
Abstract:: The shake and wash technique (samples placed in a jar with alcohol added and shaken to remove the mites) was effective in removing 100% of the predator mites, and adult spruce spider mites from Douglas-fir foliage and 98% of the spruce spider mite nymphs. Eighty-eight percent of the spruce spider...
Resource Type:: Masters Thesis
Full Text:: approximately 26°C (Boyne & Hain 1983). High temperatures may reduce egg survival and initiate a summer

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