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Creator:: Simagrai, Montri
Abstract:: Studies were conducted on the mechanisms contributing to resistance in broccoli, Brassica oleracea italica, to the garden symphylan, Scutigerella immaculata (Newport). Differences in resistance to symphylan injury were shown between five selected broccoli cultivars. The hybrid cultivars, Crusader, Green Duke and Bravo, showed a higher level of resistance to symphylans...
Resource Type:: Masters Thesis
Full Text:: appreciation is expressed to Dr. K. G. Swenson and Dr. W. W. Chilcote who served on the graduate committee

Creator:: Larson, Katherine Cole
Resource Type:: Masters Thesis
Full Text:: Entosl ogy Redacted for Privacy Dean of G ate Sdhoo Date thesis is presented 12 August 1982 Typed by

Creator:: Principal de D'Aubeterre, Judith
Abstract:: Aspects concerning the bionomics of the parasitic honey bee brood mite, Varroa jacobsoni Oudemans were investigated. Mite mortality is great during the winter season when the host colony is not rearing brood, appearing to be independent of the mortality of its host. In winter period, no significant association between the...
Resource Type:: Dissertation
Full Text:: Drs. G. W. Krantz, R. Mason, W. Proebsting and P. A. Rossignol for their valuable suggestions and as

Creator:: Burikam, Intawat
Abstract:: The early stages of secondary succession of the McDonald and Paul Dunn State Forests, Corvallis, Oregon, were grouped into three stages; herb, herb-shrub, and shrub, based on vegetation types. Flowers of herbaceous species and residual shrubs dominated in the early years after clear-cutting. Woody plants became increasing abundant in the...
Resource Type:: Dissertation
Full Text:: blackberry (Rubus ursinus Cham. & Schlecht), and Rhododendron macrophyllum G. Don. These shrubs will

Creator:: Hollingsworth, Craig Stephen
Abstract:: A pest management program for Tetranychus urticae Koch in Oregon peppermint was developed based on studies of sampling, plant phenology, population dynamics and damage thresholds. A sample size of 45 leaves provided a confidence level of 90% and a confidence interval of 50%. Estimation of the sample mean was based...
Resource Type:: Dissertation
Full Text:: , G. Fisher, E. Shields and B. Simko, asked important questions, furnished answers and collected data

Creator:: Russell, Loren Kenneth
Abstract:: Caurinus dectes Russell is a minute, brachypterous scorpionfly which was discovered at Marys Peak, Benton County, Oregon, in 1976, and subsequently described as the only representative of the subfamily Caurininae within the Boreidae (snow scorpionflies). Caurinus dectes is now known to range from the Olympic Peninsula and Northern Cascades in...
Resource Type:: Dissertation
Full Text:: this uncertain prospect. I am also appreciative of the other members of my thesis committee: G. W

Creator:: Pereira, Christine Rosabelle Dolores
Abstract:: Wood debris serves an important substrate for macroinvertebrates in streams. Particle size reduction due to feeding and other activities can be an important role of the fauna in wood degradation. In this study the Ephemeroptera associated with wood were investigated, with the objective of assessing their impact in the degradation...
Resource Type:: Masters Thesis
Full Text:: Committee, Dr. B. F. Eldridge and Dr. A. K. Ward, for reviewing this thesis, Dr. G. W. Krantz for the

Creator:: Carlson, David Craig
Abstract:: The genus Lichnanthe Burmeister contains eight extant and one fossil species which are strictly nearctic in distribution. The subfamily Glaphyrinae, however, is distributed nearly world-wide. Five species were previously described and three are described as new herein. All eight extant species are described in detail herein, synonomies are made current,...
Resource Type:: Dissertation
Full Text:: laboratory and in the field. Dr. J. D. Lattin, Dr. G. W. Krantz, Dr. P. Oman, Dr. P. D. Dawson, Dr. E. J

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