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Filtering by: Creator Welton, R. E. (Richard Elroy) Remove constraint Creator: Welton, R. E. (Richard Elroy) Subject Aphididae Remove constraint Subject: Aphididae

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  • 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

  • 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