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Creator:: James, Rosalind R.
Resource Type:: Dissertation
Full Text:: significant effect of treatment on insect survival. If a significant effect was seen, a Tukey's LSD (SAS

Creator:: Núñez Terán, Verónica
Abstract:: In the past 10 years we have witnessed the beginnings of the study of soil ecology as a unified science, and the general realization by soil scientists, farmers, and land managers that many of the most important economic aspects of soil health are controlled by biological factors. This research focuses...
Resource Type:: Masters Thesis
Full Text:: effect of pesticides in potato cultivation was also studied. In the Ecuadorean montane forest, 361

Creator:: Saeed, Mohammad
Abstract:: A parasitic wasp, Trioxys pallidus Haliday (Hymenoptera: Aphidiidae) was imported from Europe and initially released against the filbert aphid Mvzocallis coryli (Goetze) in hazelnut (filbert) orchards of the Willamette Valley, Oregon beginning in 1984. In the present study, I investigated the establishment rates of this parasitoid. A total of 13...
Resource Type:: Masters Thesis
Full Text:: Mohammad Saeed for the degree of Master of Science in Entomology presented on July 25 1989. Title

Creator:: Bowden, Richard I.
Abstract:: Defensive chemical and nutritive quality of young leaves were measured for 72 individual trees of Chrysolepis [Castanopsis] chrysophylla in conjunction with light intensities of two different stand types and population numbers of Habrodais grunus herri in the Cascade mountains of Oregon. Leaves were collected in the spring and leaf characteristics...
Resource Type:: Masters Thesis
Full Text:: time, work was being conducted on the importance of secondary metabolites on insect populations. A

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