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Seasonal activities of two species of eriophyid mites on holly and their relation to foliage damage

Creator:: Welton, Richard Elroy
Resource Type:: Masters Thesis
Full Text:: HOLLY AND THEIR RELATION TO FOLIAGE DAMAGE by RICHARD ELROY WELTON A THESIS submitted to

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:: INOCULATION WITH BEAN YELLOW MOSAIC VIRUS by RICHARD ELROY WELTON A THESIS submitted to OREGON

Population cycles of eriophyid mites in holly in relation to foliage abnormalities

Creator:: Welton, R. E. (Richard Elroy) and Swenson, K. G. (Knud George), 1923-
Abstract:: Published June 1962. 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:: Foliage Abnormalities R. E. Welton K. G. Swenson Agricultural Experiment Station Oregon State

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:: for t he r dvice and gui ca . The rit r wishes to t hank Dr . E. G. Linsley, Ch i~an

Empirical studies on the estimation of variances in linear regression models

Creator:: Reinmuth, James Elroy
Abstract:: An iterative approach is suggested for the estimation of the error covariance matrix [sigma] to find approximate BLUE estimators in linear regression models. It is shown through experimental studies how the variances can be estimated in the simple general linear regression model, in the linear regression model sequenced over time,...
Resource Type:: Dissertation
Full Text:: and the error vector e are dependent, the estimator R(w) is still unbiased provided that E(EIw) = 0

Biology of rain beetles, Pleocoma spp., associated with fruit trees in Wasco and Hood River counties

Creator:: Ellertson, Floyd Elroy and Ritcher, Paul O.
Abstract:: Published February 1959. 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:: . E. Ellertson P. O. Ritcher A1ricultural Experiment Station Oregon State College Corvallis Table

Imagining the Future into Reality: An Interdisciplinary Exploration of The Jetsons

Creator:: Myrick, Jane E.
Abstract:: This investigation examines The Jetsons’ vision of the future and tracks to what extent the content of the show is relevant to the modern era, both technologically and socially. Much of the dazzling technology in the show feels familiar, and most of it is either already available or is in...
Resource Type:: Honors College Thesis
Full Text:: , Television, Cartoon Corresponding e-mail address: myrickj@oregonstate.edu

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:: , with Dr" R" E" Welton, Southern Ashland, Oregon" 40 sample sj-ze or if it was a case of loss of

OSU theses and dissertations : 1960-1965

Creator:: Brandt, Patricia A.
Abstract:: A departmental and author index of 1,388 Masters Theses and Doctoral Dissertations accepted by the Graduate School, Oregon State University.
Resource Type:: Book
Full Text:: Reservation, Oregon. 44. Schermerhorn, Richard Willis. Impact of Changing Market Organization and Structure

A leaf spot diseases of English holly caused by an undescribed species of Sclerophoma

Creator:: Brown, William M., 1935-
Abstract:: English holly culture in Oregon has been threatened by the development of red leaf spots which prevent sale of cut holly. Chemical, mechanical and insect injury and boron deficiency have been shown in the past to cause different types of red leaf spotting, but the cause of holly scab, a...
Resource Type:: Dissertation
Full Text:: I o ! c d Siz ÿV' r o _+ì . h ° 8r . ", . é e 7 develops on the

ScholarsArchive@OSU

Seasonal activities of two species of eriophyid mites on holly and their relation to foliage damage

Susceptibility of peas to aphid inoculation with bean yellow mosaic virus

Population cycles of eriophyid mites in holly in relation to foliage abnormalities

Biology of some Oregon rain bettles, Pleocoma spp., associated with fruit trees in Wasco and Hood River counties

Empirical studies on the estimation of variances in linear regression models

Biology of rain beetles, Pleocoma spp., associated with fruit trees in Wasco and Hood River counties

Imagining the Future into Reality: An Interdisciplinary Exploration of The Jetsons

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

OSU theses and dissertations : 1960-1965

A leaf spot diseases of English holly caused by an undescribed species of Sclerophoma

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