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Filtering by: Subject Potatoes -- Oregon -- Willamette River Valley -- Fertilizers Advisor Aliniazee, M. T.

Effect of temperature and photoperiod on growth and development of the filbert leafroller, archips rosanus L. (lepidoptera: Tortricidae) in the Willamette Valley of Oregon

Creator:

Al-Zabidi, Ahmed Hizam, 1953-

Abstract:

Role of temperature and photoperiod on development of the filbert leafroller, Archips rosanus L., (Lepidoptera: Tortricidae) from the Willamette Valley, Oregon was studied in the laboratory and in the field. Both temperature and photoperiod had a significant influence on the developmental rate of this species from neonate larva to adult...

Resource Type:

Dissertation

Full Text:

the Willamette Valley of Oregon. Abstract approved: Professor. M. T. AliNiazee Role of
Developmental biology and phenology of the walnut husk fly, Rhagoletis completa Cresson (Diptera: Tephritidae) in the Willamette Valley of Oregon

Creator:

Kasana, Abdulmajid

Resource Type:

Dissertation

Full Text:

, Rhagoletis completa Cresson (Diptera: Tephritidae) in the Willamette Valley of Oregon AN ABSTRACT OF THE
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:

80 VII. APPENDIX 87 LIST OF FIGURES FIGURE PAGE 1. Map of Willamette Valley, Oregon, showing

ScholarsArchive@OSU

Effect of temperature and photoperiod on growth and development of the filbert leafroller, archips rosanus L. (lepidoptera: Tortricidae) in the Willamette Valley of Oregon

Developmental biology and phenology of the walnut husk fly, Rhagoletis completa Cresson (Diptera: Tephritidae) in the Willamette Valley of Oregon

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

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