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Plants, plant communities, net production and tide levels; the ecological biogeography of the Nehalem salt marshes, Tillamook County, Oregon

Creator:: Eilers, H. Peter
Abstract:: Nehalem Bay is located on the northern coast of Oregon in Tillamook County and contains approximately 243 ha of salt marsh. The Nehalem marshes occur as islands and land-tied units. West Island is the largest marsh island with an area of 82.9 ha and a maximum elevation of 3.079 m...
Resource Type:: Dissertation

Tidal datums and characteristics of the upper limits of coastal marshes in selected Oregon estuaries : final report

Creator:: Frenkel, Robert E. and Eilers, H. Peter
Abstract:: "A pilot study conducted for the Environmental Protection Agency." "Based on field work conducted during the months of July and August 1976, the following report describes the characteristics of vegetation at the upper limit of intertidal wetland in five Oregon coastal marshes and relates vegetation characteristics to marsh zonation, elevations...
Resource Type:: Technical Report
Full Text:: PROTECTION AGENCY BY ROBERT E. FRENKEL, PRINCIPAL INVESTIGATOR AND H. PETER EILERS, ASSOCIATE

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:: --------------------------------------------------------------------------------------------- 20 AUTHORS: P. H. Westigard is an associate professor of entomology at the Southern Oregon

Failure of interbreeding between Atlantic and Pacific populations of the marine calanoid copepod Acartia clausi Giesbrecht

Creator:: Carrillo B.-G., Enrique, Miller, Charles B., and Wiebe, Peter H.
Abstract:: An attempt has been made to interbreed populations of Acartia clausi from Woods Hole, Massachusetts, and Yaquina Bay, Oregon. Individuals from these populations are morphologically similar, but differ somewhat in size. Cultures from both sources produced many successive generations in the laboratory, but interbreeding with production of viable offspring did...
Resource Type:: Article
Full Text:: .-G.2 and Charles B. Miller School of Oceanography, Oregon State University, Corvallis 97331 Peter

Entomological Research Report : 1975

Creator:: Westigard, Peter H., Southern Oregon Agricultural Experiment Station, and Oregon State University. Agricultural Experiment Station
Abstract:: This report includes information concerning experimental use of unregistered pesticides or unregistered uses of pesticides. Experimental results should not be interpreted as recommendations for use. Use of unregistered materials or use of any registered pesticides inconsistent with its label is against both Federal Law and State Law.
Resource Type:: Technical Report
Full Text:: Southern Oregon Experiment Station P. H. Nestigard (Not for Publication) 1975 Research Data I

Report for 1977

Creator:: Westigard, Peter H., Southern Oregon Agricultural Experiment Station, and Oregon State University. Agricultural Experiment Station
Abstract:: This report includes information concerning experimental use of unregistered pesticides or unregistered uses of pesticides. Experimental results should not be interpreted as recommendations for use. Use of unregistered materials or use of any registered pesticides inconsistent with its label is against both Federal Law and State Law.
Resource Type:: Technical Report
Full Text:: /Trap/ Week H N up -P 0| Q Q Q Q Q 6;»\- _ Cd 3 _ ®_@@m_@@_©®@_@__@_©_X@_w %_X@_@_€@_@¢__

Entomological Research Report : 1979

Creator:: Westigard, Peter H., Southern Oregon Agricultural Experiment Station, and Oregon State University. Agricultural Experiment Station
Abstract:: This report includes information concerning experimental use of unregistered pesticides or unregistered uses of pesticides. Experimental results should not be interpreted as recommendations for use. Use of unregistered materials or use of any registered pesticides inconsistent with its label is against both Federal Law and State Law.
Resource Type:: Technical Report
Full Text:: Fydvln BUUOONIQIIOIIIQUOII »~w .. . L; “ P@@bl00m~1st raver Pv&v1m ............ ..n . .*. ¢ 1 /h,4»\ .1

Western Cooperative Spray Project : 1974

Creator:: Westigard, Peter H., Southern Oregon Agricultural Experiment Station, and Oregon State University. Agricultural Experiment Station
Abstract:: This report includes information concerning experimental use of unregistered pesticides or unregistered uses of pesticides. Experimental results should not be interpreted as recommendations for use. Use of unregistered materials or use of any registered pesticides inconsistent with its label is against both Federal Law and State Law.
Resource Type:: Technical Report
Full Text:: applied at comparable rates to Plictran, the latter acaricide gave either we H knockdown or longer

Annual Report Projects : 1972

Creator:: Westigard, Peter H., Southern Oregon Agricultural Experiment Station, and Oregon State University. Agricultural Experiment Station
Abstract:: This report includes information concerning experimental use of unregistered pesticides or unregistered uses of pesticides. Experimental results should not be interpreted as recommendations for use. Use of unregistered materials or use of any registered pesticides inconsistent with its label is against both Federal Law and State Law.
Resource Type:: Technical Report
Full Text:: 11???? P. H. Wes+igard Oregon Sfafe Universify Soufhern Oregon Experimen+ S+a+ion Con+ents Page

Western Cooperative Spray Project : 1970

Creator:: Westigard, Peter H., Southern Oregon Agricultural Experiment Station, and Oregon State University. Agricultural Experiment Station
Abstract:: This report includes information concerning experimental use of unregistered pesticides or unregistered uses of pesticides. Experimental results should not be interpreted as recommendations for use. Use of unregistered materials or use of any registered pesticides inconsistent with its label is against both Federal Law and State Law.
Resource Type:: Technical Report
Full Text:: January 1971 J,4‘ W H,‘/\ V\ P. H. Westigard Oregon State University Southern Oregon Experiment Station

ScholarsArchive@OSU

Plants, plant communities, net production and tide levels; the ecological biogeography of the Nehalem salt marshes, Tillamook County, Oregon

Tidal datums and characteristics of the upper limits of coastal marshes in selected Oregon estuaries : final report

The pear psylla in Oregon

Failure of interbreeding between Atlantic and Pacific populations of the marine calanoid copepod Acartia clausi Giesbrecht

Entomological Research Report : 1975

Report for 1977

Entomological Research Report : 1979

Western Cooperative Spray Project : 1974

Annual Report Projects : 1972

Western Cooperative Spray Project : 1970

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