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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

The transmission of bean yellow mosaic virus by some strains of the aphid Myzus persicae (Sulzer)

Creator:: Carpenter, Gene Paul
Resource Type:: Masters Thesis
Full Text:: is due. First among these is Dr. K. G. Swenson to whom I am grateful for the help and patient

Use of petroleum oils to prevent spread of stylet-borne viruses by aphids

Creator:: Ascerno, Mark E.
Abstract:: The use of petroleum oil prevented, to varying degrees: the transmission of three stylet-borne viruses in three different crops. The use of oils resulted in a marked improvement in the number of lily bulbs harvested from treated plots as compared to the number of lily bulbs harvested from untreated plots....
Resource Type:: Masters Thesis
Full Text:: PREVENT SPREAD OF STYLET -BORNE VIRUSES BY APHIDS Abstract approved: Dr. K. G. Swenson The use of

Population development of Scutigerella immaculata (Newport), in laboratory and greenhouse cultures

Creator:: Ramsey, Henry Lee
Abstract:: Population development of the symphylan, Scutigerella immaculata (Newport), was studied in laboratory cultures. Also symphylan injury to greenhouse plants was investigated. Plastic polyethylene containers partly filled with damp ground hemlock bark were used to culture symphylan in the laboratory. Fresh lettuce food was supplied to the cultures weekly. Factors which...
Resource Type:: Masters Thesis
Full Text:: approved: IIIMME Dr. K. G. Swenson Population development of the symphylan, Scutigerella immacu- lata

Aphid transmission of an undescribed virus from sweet cherry

Creator:: Smith, Gordon Kent
Resource Type:: Masters Thesis
Full Text:: Dr. K. G. Swenson and found to transrnit this virus. Phytopathogenic viruses rnay be divided into

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

Induction of diapause in Colladonus montanus reductus (Van Duze)

Creator:: Marsh, Terrence George
Abstract:: Experiments conducted in the greenhouse showed that the leafhopper, Colladonus montanus reductus (Van Duzee), is a long-day insect. This conclusion is based on the production of diapausing eggs when the leafhoppers were kept under short days (ten hours) during the nymphal stage and the adult pre-oviposition period. Continuous development of...
Resource Type:: Masters Thesis
Full Text:: Dr. K. G. Swenson, Professor of Entomology, Oregon State University, for his guidance and criticism

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

Factors affecting the susceptibility of bean plants to inoculation with bean yellow mosaic virus

Creator:: Sohi, Sardara Singh
Resource Type:: Masters Thesis
Full Text:: tables I and 8. s, DcfLnlttonr $g,gu+SlttpTr {qgltEffi r,efera ts feedtns, pertod of, sphl.ds on the

ScholarsArchive@OSU

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

The transmission of bean yellow mosaic virus by some strains of the aphid Myzus persicae (Sulzer)

Use of petroleum oils to prevent spread of stylet-borne viruses by aphids

Population development of Scutigerella immaculata (Newport), in laboratory and greenhouse cultures

Aphid transmission of an undescribed virus from sweet cherry

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

Induction of diapause in Colladonus montanus reductus (Van Duze)

Environmental biology of Eriosoma pyricola Baker and Davidson

Factors affecting the susceptibility of bean plants to inoculation with bean yellow mosaic virus

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