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Creator:: Gara, R. I. (Robert Imre), 1931-
Resource Type:: Masters Thesis
Full Text:: professor, Dr. Julius A. Rudinsky, for his aid in organisation and critica], review of this thesis. To

Creator:: Gara, R. I. (Robert Imre), 1931-
Abstract:: The flight behavior of Ips confusus (Lec.) was primarily studied under field conditions, but augmented with complementary laboratory studies whenever feasible. The experiments were mostly conducted in areas of endemic population levels, but also under epidemic and prairie conditions. The techniques and devices used in marking, releasing, attracting, and trapping...
Resource Type:: Dissertation
Full Text:: . J. A. Rudinsky, for his critical review and organization of this thesis. He too spent a great

Creator:: Stoszek, Karel Josef
Abstract:: The study (1) describes the life cycle of P. nebulosus, (2) examines stimuli that may cause the beetles to locate brood material, and (3) establishes the relationship between moisture stress in Douglas-fir and colonization by P. nebuZosus.and other meristem insects. (1) Development of P. nebulosus goes through the egg stage,...
Resource Type:: Dissertation
Full Text:: Dr. Julius A. Rudinsky for suggesting the study problem, for support in thesis planning

Creator:: Vernoff, Suellen
Abstract:: Both Leperisinus oregonus and L. californicus are bark beetle species which emerge from Fraxinus latifolia brood logs as sexually immature adults and disperse to living ash. Occasional field observations suggest that, for overwintering and maturation feeding, L. oregonus enter trunks and branches, whereas L.; californicus enter twig crotches, buds and...
Resource Type:: Masters Thesis
Full Text:: . Julius A. Rudinsky Both Leperisinus oregonus and L. californicus are bark beetle species which emerge

Creator:: Daterman, Gary E.
Abstract:: The study was undertaken to determine the seasonal and diurnal flight patterns of scolytid beetles inhabiting a second growth forest of Douglas-fir (Pseudotsuga menziesii (Mirb.)Franco) in western Oregon. Air temperatures, relative humidity, light intensity, and wind velocities were recorded for evaluation of their influence on flight activity. The insects were...
Resource Type:: Masters Thesis
Full Text:: preparation and completion of this study: To my advisors I Dr. Julius A. Rudinsky for his guidance and

Creator:: Swaby, James Archie
Resource Type:: Masters Thesis
Full Text:: - ticularly Dr. J. A. Rudinsky, my major professor. I would like to express my appreciation to the United

Creator:: Pierce, John Rayner
Resource Type:: Masters Thesis
Full Text:: appreciation to Dr. VJ. j. Chwxtherlin, Dr. J. A. Rudinsky an Dr. P. 0, Ritcher ror their hei' and

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