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Creator:: Kelly, Alice M.
Abstract:: Cydia latiferreana Wlshm. is recognized as the key insect pest of cultivated filbert (hazelnut) in Oregon. The purpose of this study was to obtain information on mating and oviposition behavior of the adult insect, to calculate the lower temperature threshold and degree-days required for egg development, and to develop an...
Resource Type:: Masters Thesis
Full Text:: . is recognized as the key insect pest of cultivated filbert (hazelnut) in Oregon. The purpose of

Creator:: Wetherill, Karen R.
Abstract:: The European hazelnut, Corylus avellana L., was imported into the U.S. in the late 1800's and is now grown throughout the Willamette Valley in Oregon. A native species of hazelnut, C. cornuta Marshall, is a common shrub found in forested areas of the Pacific Northwest. Foliage of both C. avellana...
Resource Type:: Masters Thesis
Full Text:: , Function, and Analysis of Coleoptera and Heteroptera Assemblages on Two Species of Hazelnut in Oregon

Creator:: Cohn, Judy L.
Abstract:: Seasonal synchrony between the filbert aphid, Myzocallis coryli (Goetze) and its newly introduced parasitoid Trioxys pallidus Haliday was examined in the field to evaluate the effectiveness of parasitoid based biological control in filbert orchards of Oregon. Fieldemergence observations showed that 50% eclosion of the aphid occurred 14 days before that...
Resource Type:: Masters Thesis
Full Text:: a total of 2,645 adult and 1,900 mummy T. pallidus were released in western Oregon filbert orchards

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:: of this pest, and reported 10-11 generations per year in Oregon. He reported that the overwintering

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