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Filtering by: Committee Member Fryer, J. L. Advisor Aliniazee, M. T.

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:

, Professor Wilbert L. Andersen, for his generous help, invaluable suggestions and always availability, and
Gamma irradiation of the western cherry fruit fly for the sterile male control technique

Creator:

Brown, Robert David

Abstract:

The western cherry fruit fly, Rhagoletis indifferens Curran, was studied to determine the suitability of the sterile insect technique for its control. To obtain insect material, field collection of maggots is preferred to sifting of soil or rearing on artificial diet. The western cherry fruit fly is strictly univoltine; only...

Resource Type:

Dissertation

Full Text:

committee members for their help and patience: Drs. G. R. Ferguson, J. L. Green, M. C. Mix, P. A. Roberts