Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Subject Pear -- Diseases and pests -- Control -- Oregon -- Willamette River Valley Decade 1980-1989

1982 spray guide for apples and pears in the Willamette Valley

Creator:

Oregon State University. Extension Service

Abstract:

Revised January 1982. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog

Resource Type:

Technical Report

Full Text:

been in the larger pear growing districts of Oregon, such as the Rogue Valley and Hood River areas
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:

called Corylus californica), make the Willamette Valley of Oregon and the corresponding areas in
Burning grass seed fields in Oregon's Willamette valley : the search for solutions

Creator:

Conklin, Frank S., Young, William C. (William Clyde), Youngberg, Harold Wayne, 1929-, Oregon State University. Extension Service, Oregon State University. Agricultural Experiment Station, and United States. Agricultural Research Service

Abstract:

This publication is prepared as a public service by faculty members at Oregon State University in response to a perceived need for information on field burning. The report has been prepared as a reference and source document for 1989 legislative and agency deliberations on further adjustments in thermal sanitation of...

Resource Type:

Technical Report

Full Text:

mechanical or chemical methods of disease, pest, and insect control to be effective. From a technical