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The effects of throidectomy on the salamander Triturus torosus (Rathke)

Creator:: Taylor, Alfred
Resource Type:: Dissertation
Full Text:: g. Blood coli counts - l h. The v. cera -' - -i-- -------- -------- 16 : . Oerebral 1obe

Environmental biology of Endria inimica (Say) (Homoptera:Homoptera:Cicadellidae)

Creator:: Gustin, Ralph Donald
Abstract:: The leafhopper vector, Endria inimica (Say), of wheat striate mosaic virus is a bivoltine insect which overwinters as second generation eggs in a state of diapause. Under experimental conditions, egg diapause resulted from rearing females under short days (12L:12D) and diapause was averted by rearing females under long days (15L:9D)....
Resource Type:: Dissertation
Full Text:: ) (Cicadellidae: Homoptera) Redacted for Privacy Abstract approved: K. G. Swenson The leafhopper vector

Effects of intrinsic factors in the transmission of bean yellow mosaic virus by aphids

Creator:: Sohi, Sardara Singh
Abstract:: The effects of the inherent transmissibility of the virus and of the inherent transmitting ability of aphids on the transmission of bean yellow mosaic virus (BYMV) were studied along with four virus-vector relationships of BYMV and the green peach aphid, Myzus persicae (Sulz.). In addition, investigations were made on the...
Resource Type:: Dissertation
Full Text:: appreciation to Dr. K. G. Swenson, Professor of Entornology, for his constant encouragement, guidance and

Susceptibility of peas to aphid inoculation with bean yellow mosaic virus

Creator:: Welton, R. E. (Richard Elroy)
Abstract:: The effects of soil moisture, mineral nutrition and temperature on the susceptibility of peas to inoculation with bean yellow mosaic virus (BYMV) by the green peach aphid, Myzus persicae (Sulz.) were investigated along with three vector-virus relationships. In addition, a comparative study was made of two methods of evaluating susceptibility...
Resource Type:: Dissertation
Full Text:: . K. G. Swenson, Professor of Entomology, Oregon State University, for his direction, advice and

Factors affecting aphid transmission of bean yellow mosaic virus

Creator:: Adlerz, W. C. (Warren Clifford)
Resource Type:: Dissertation
Full Text:: for the help and uidance of Dr. K .G. Swenson, Associate Professor in the Agricultural Experiment

Some factors determining the level of bean yellow mosaic virus transmission by aphids

Creator:: Carpenter, Gene Paul
Abstract:: Experiments were done to determine the effect of some factors on the level of transmission of bean yellow mosaic virus (BYMV) by aphids. The effect of different source plant treatments, the effect of light on test plant susceptibility, and the effect of a second virus on the transmission of BYMV...
Resource Type:: Dissertation
Full Text:: gratitude to the following: To my major professor, Dr. K. G. Swenson, Professor, Department of

Environmental biology of Eriosoma pyricola Baker and Davidson

Creator:: Sethi, Satnam Lal
Abstract:: A method of culturing Eriosoma pyricola on detached root pieces was developed to ensure a regular supply of aphids for experimental work. Another method was designed for studying the alate sexuparae formation in woolly pear aphid, whereby growing plants were infested so that the aphids or their progeny could be...
Resource Type:: Dissertation
Full Text:: ERIOSOMA PYRICOLA BAKER AND DAVIDSON Abstract approved: K. G. Swenson A method of culturing Eriosoma

Ecology of mites on pomaceous fruit trees and related wild hosts in Hood River Valley

Creator:: Jorgensen, Clive Darrel
Abstract:: The ecological interrelationships of mites occurring in and near the Hood River Valley, Oregon, pome fruit orchards were investigated to determine the possibility of an integrated control program using the species already present. Survey sampling methods were used to study mites on wild hosts (Crataegus douglasii Lindl., Crataegus columbiana Howell,...
Resource Type:: Dissertation
Full Text:: G. Swenson The ecological interrelationships of mites occurring in and near the Hood River

Direct mass measurements of light neutron-rich nuclei using a combined energy and time-of-flight technique

Creator:: Pillai, Chandrasekhara
Resource Type:: Dissertation
Full Text:: APPROVED: Professor df Physics in charge of major Head of department of Physics Dean of G?àduate Scho

Vinylcarbene intermediates in some cyclic systems

Creator:: Swenson, Karl Edward
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE THESIS OF KARL EDWARD SWENSON for the degree of DOCTOR OF PHILOSOPHY in Chemistry

ScholarsArchive@OSU

The effects of throidectomy on the salamander Triturus torosus (Rathke)

Environmental biology of Endria inimica (Say) (Homoptera:Homoptera:Cicadellidae)

Effects of intrinsic factors in the transmission of bean yellow mosaic virus by aphids

Susceptibility of peas to aphid inoculation with bean yellow mosaic virus

Factors affecting aphid transmission of bean yellow mosaic virus

Some factors determining the level of bean yellow mosaic virus transmission by aphids

Environmental biology of Eriosoma pyricola Baker and Davidson

Ecology of mites on pomaceous fruit trees and related wild hosts in Hood River Valley

Direct mass measurements of light neutron-rich nuclei using a combined energy and time-of-flight technique

Vinylcarbene intermediates in some cyclic systems

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