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Filtering by: Subject Fir -- Diseases and pests Remove constraint Subject: Fir -- Diseases and pests Academic Affiliation Entomology Remove constraint Academic Affiliation: Entomology Decade 1950-1959 Remove constraint Decade: 1950-1959

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The speed of toxic action of new insecticides on pea aphid (Macrosiphum pisi (Kalt.) compared with nicotine sulfate

Creator:

Chang, Shen Chin

Resource Type:

Masters Thesis

Full Text:

generations per year and undr fvorab1e oonditions large and destructivo populations of the pest ma develop
Biology and habits of the carrot rust fly Psila rosae (Fab.), in Oregon (Diptera: psilidae)

Creator:

Tanner, Carl Robert

Resource Type:

Masters Thesis

Full Text:

history and habits. The writer undertook this investigation in the hope that a study of this pest under
Biology of the soft brown scale, Coccus hesperidum Linn., and control of soft scales on holly

Creator:

Adlerz, W. C. (Warren Clifford)

Resource Type:

Masters Thesis

Full Text:

mon pest of both citrus trees and ornamental plants . In Oregon the soft bro~m s ca le is a. common
The root maggot complex (Diptera: Anthomyiidae) in cruciferous crops of the Pacific Northwest

Creator:

Forbes, Albert Ronald

Resource Type:

Masters Thesis

Full Text:

habits and lite histor ies of" eaoh ot the pest speo1es 1nvolv•d. OnlJ \hen can the econom1oal. and
The western oak bark beetle, Pseudopityophthorus pubinpennis (Lec.), in the central Willamette Valley of Oregon

Creator:

Dobson, Richard Cecil

Resource Type:

Dissertation

Full Text:

, Saad of thc &spa tsent of e*tseslagy &t Sre6on Stat* €ollag* for thsln halp and augg*etlon** ?o Br
Biological studies of the vetch bruchid, Bruchus brachialis Fahraeus in Oregon

Creator:

Steinhauer, Allen Laurence

Resource Type:

Masters Thesis

Full Text:

. Dickon, !ssistant Fntorro1oit, Oregon AErioultural Experirent Etation, for his advice and assistance
The life history and habits of a new species of seed midge, Dasyneura Sp., which attacks Ladino clover

Creator:

Bishop, Guy William

Resource Type:

Masters Thesis

Full Text:

The life history and habits of a new species of seed
Biology of the alder bark beetle, Alniphagus aspericollis (Leconte) in the Willamette Valley

Creator:

Pierce, John Rayner

Resource Type:

Masters Thesis

Full Text:

appreciation to Dr. VJ. j. Chwxtherlin, Dr. J. A. Rudinsky an Dr. P. 0, Ritcher ror their hei' and
The biology of the brown orchard mite, Bryobia arborea Morgan and Anderson (Acarina : Tetranychidae) on stone fruit trees in The Dalles, Oregon area

Creator:

Burts, Everett C.

Resource Type:

Masters Thesis

Full Text:

Morgan and Anderson (Acarina: Tetranychidae) on Stone Fruit Trees in the Dalles, Oregon Area THE
Biology of some Oregon rain bettles, Pleocoma spp., associated with fruit trees in Wasco and Hood River counties

Creator:

Ellertson, Floyd Elroy

Resource Type:

Dissertation

Full Text:

of Dou8las fir and yello~-pine to pure s t an ds of yello - pine or ~low-pine and Ore gon oak , or

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Academic Affiliation

Entomology[remove]13

Advisor

Ritcher, Paul O.3
Crowell, H. H.2
Chamberlin, W. J.1
Krantz, G. W.1
Martin, Charles H.1
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1950 to 1959

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Committee Member

Ritcher, Paul O.1
Smith, Frank H.1

Creator

Adlerz, W. C. (Warren Clifford)1
Bishop, Guy William1
Burts, Everett C.1
Chang, Shen Chin1
Dobson, Richard Cecil1
more Creators »

Date

Date range begin – Date range end

Current results range from 1950 to 1958

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Decade

1950-1959[remove]13

Degree Field

Entomology13

Degree Level

Master's11
Doctoral2

Degree Name

Master of Science (M.S.)11
Doctor of Philosophy (Ph.D.)2

Language

English [eng]13

Non-Academic Affiliation

Oregon State University. Graduate School13

Peer Reviewed

No13

Resource Type

Masters Thesis11
Dissertation2

Rights Statement

Copyright Not Evaluated13

Subject

Diptera2
Fruit -- Diseases and pests2
Alder -- Diseases and pests1
Aphididae1
Bark beetles1
more Subjects »

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