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Bionomics and control of the two-spotted spider mite on pear in southern Oregon

Creator:: Westigard, Peter H., Lombard, P. B. (Porter B.), and Berry, Donald W.
Abstract:: Published November 1967. 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:: ------------------------------------------------------------------------------------ 31 AUTHORS: Peter Westigard is an associate professor of entomology and Porter Lombard is an

Integrated pest management of insects and mites attacking pears in southern Oregon

Creator:: Westigard, Peter H., Lombard, P. B. (Porter B.), and Berry, Donald W.
Abstract:: This publication deals with the development of integrated pest management of insect and mite species that attack pears in southern Oregon. Since about 1900, when the pear industry became firmly established in this area, losses from arthropod pests have been an important and occasionally limiting factor to the continuous production...
Resource Type:: Technical Report
Full Text:: Oregon Peter H. Westigard, Porter B. Lombard, and Donald W Berry Introduction This publication deals

Dissolved oxygen requirements of freshwater fishes

Creator:: Doudoroff, Peter and Shumway, Dean L.
Abstract:: This critical review of literature on dissolved oxygen requirements of freshwater fishes is one of a series of papers on water quality criteria, the formulation of which is a prerequisite to the control of water pollution. It was prepared for FAO by the State of Oregon (acting by and through...
Resource Type:: Technical Report
Full Text:: (Distribution restricted) -DISSOLVED OXYGEN REQUIREMENTS OF FRESHWATER FISHES by Peter Doudoroff and ,Dean

Using horticultural spray oils to control orchard pests

Creator:: Willett, Mike and Westigard, Peter H.
Abstract:: Petroleum oils have been used to suppress insect and mite pests for 100 years. Beginning in the 1880's, when kerosene was first used to control scale and aphids, to the present use of highly refined petroleum derivatives, these products have provided growers with a unique tool in their battle against...
Resource Type:: Technical Report
Full Text:: Peter H. Westigard, professor of entomol- ogy, Southern Oregon Experiment Station, Oregon State

Some economic considerations affecting the marketing of Oregon dried prunes through cooperative dried-prune-packing associations

Creator:: Oregon State College. Agricultural Experiment Station, DeLoach, D. B. (Daniel Barton), 1904-, and Peters, Charles Wilber, 1908-
Abstract:: Published November 1940. 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:: DANIEL B. DELOACH and CHARLES W. PETEIs N1J Oregon State

Some economic considerations of marketing Oregon fruits and vegetables through cooperative canning associations

Creator:: Oregon State College. Agricultural Experiment Station, DeLoach, D. B. (Daniel Barton), 1904-, and Peters, Charles Wilber, 1908-
Abstract:: Published October 1940. 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:: Vegetables Through Cooperative Canning Associations DANIEL B. DELOACH CHARLES W. PETERS Oregon State

Understanding your forage test results

Creator:: Ruddell, A. Peters (Amy Peters), Filley, Shelby Jean, and Porath, Marni
Abstract:: Balanced nutrition is important for efficient livestock production. Daily nutrient requirements vary depending on the phase of production. Knowing the nutrient composition of feeds and matching feeds to animal requirements at a given stage of production will ensure that nutritional needs are met. Forage analysis is a management tool that...
Resource Type:: Technical Report
Full Text:: nitrogen is fed Microminerals and their functions Cobalt (Co)—required for vitamin B 12 synthesis

The pear psylla in Oregon

Creator:: Westigard, Peter H. and Zwick, Robert Ward, 1922-
Abstract:: Since its discovery in Oregon in 1946, the pear psylla, Psylla pyricola Forster, has become the most serious insect pest of pear. Damage to pear trees include the transmission of pear decline disease which has caused losses of trees, injection of a phytotoxic toxin resulting in tree shock and injury,...
Resource Type:: Technical Report
Full Text:: , Oregon (photo courtesy C. B. Cords) TH IS P UB LIC AT IO N IS O UT O F D AT E. Fo r m os

Potato virus diseases : Oregon investigations 1924-1929

Creator:: Oregon State Agricultural College. Agricultural Experiment Station, McKay, M. B. (Marion Bertice), 1887-, and Dykstra, Theodore P. (Theodore Peter), 1896-1979
Abstract:: Published January 1932. 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:: . Albert Burch MedfordHon. C. C. Colt Portland Hon. E. C. Pease The Dalles Hon. B. F. Irvine Portland Hon

Potato diseases in Oregon and their control

Creator:: McKay, M. B. (Marion Bertice), 1887-, Dykstra, Theodore P. (Theodore Peter), 1896-1979, and Oregon State Agricultural College. Agricultural Experiment Station
Abstract:: Published February 1930. 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:: OREGON STATE BOARD OF HIGHER EDUCATION Hon. Herman Oliver Canyon CityHon. C. C. Colt PortlandHo0. B. F

ScholarsArchive@OSU

Bionomics and control of the two-spotted spider mite on pear in southern Oregon

Integrated pest management of insects and mites attacking pears in southern Oregon

Dissolved oxygen requirements of freshwater fishes

Using horticultural spray oils to control orchard pests

Some economic considerations affecting the marketing of Oregon dried prunes through cooperative dried-prune-packing associations

Some economic considerations of marketing Oregon fruits and vegetables through cooperative canning associations

Understanding your forage test results

The pear psylla in Oregon

Potato virus diseases : Oregon investigations 1924-1929

Potato diseases in Oregon and their control

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