Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Creator Saedi, Mohammad Saeed Subject Hazel -- Diseases and pests -- Biological control -- Oregon -- Willamette River Valley

Toxicity of some commonly used pesticides to Trioxys Pallidus and its establishment in filbert orchards of Willamette Valley

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