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Creator:: Hendrickson, William Henry
Abstract:: Factors considered were phloem moisture, sour-phloem (which may be furthered by the presence of ample phloem moisture), oleoresin of the host, and the presence of unmated female beetles in suitable host material. Levels of phloem moisture present in variously prepared logs in the field ranged from about 100 to upwards...
Resource Type:: Dissertation
Full Text:: did Dr. P. O, Ritcher, Chairrnan of the Departrnent of Entornology. Dr. Charles H. Martin, also of

Creator:: Gara, R. I. (Robert Imre), 1931-
Resource Type:: Masters Thesis
Full Text:: nber o bestias caught during each hour through- out the entire flight period, as splsd by rotary

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:: feasible o The experiments were mostly conducted in areas of endemic pop ulation levels, but also under

Creator:: Ryan, Roger B.
Resource Type:: Dissertation
Full Text:: ................... 15 7. Photomicrograh of a stion through the abdoman o f a fifth instar

Creator:: Jantz, Orlo Kenneth
Abstract:: Behavioral responses exhibited by the Douglas-fir beetle, Dendroctonus pseudotsugae Hopkins, to various attractant sources were investigated under both laboratory and field conditions. Tests were designed to observe olfactory responses. Results were correlated and compared with collections from sampling nets and with emergence patterns. Field data were collected during the flight...
Resource Type:: Dissertation
Full Text:: OF CONTENTS INTRODUC TION O BJEC TIVES REVIEW OF LITERATURE General Scolytidae MATERIALS AND

Creator:: Pitman, Gary Boyd
Abstract:: The purpose of this study was to study in some detail host factors which influence the population dynamics of bark beetle. The dissertation objectives were to ascertain the applicability of utilizing osmotic pressure values and relative turgidity values of phloem tissue as indicators which reflect upon the physiological profile of...
Resource Type:: Dissertation
Full Text:: for the Ph.D. in Entomology (Name) (Degree) (Major) Date thesis is presented j 7L ó er l6 Title

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