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  • Biology and management of the obliquebanded leafroller, Choristoneura rosaceana (Harris) (Lepidoptera: Tortricidae), in sweet cherry

    Creator:
    Omeg, Michael Kent
    Abstract:
    The seasonal biology of the obliquebanded leafroller, Choristoneura rosaceana (Harris), was studied to improve its management in Mid-Columbia area sweet cherry orchards. Overwintering OBLR larvae began to emerge from hibernacula at bud stage 2 (side green). Most overwintering larvae emerged from hibernacula within three weeks of first bud swell and...
    Resource Type:
    Masters Thesis
    Full Text:
    , Choristoneura rosaceana (Harris) (Lepidoptera: Tortricidae), in sweet cherry AN ABSTRACT OF THE THESIS OF

  • Soil organic matter management and root health

    Creator:
    Darby, Heather
    Abstract:
    Annual applications of fresh or composted dairy manure were assessed for their effects on root rots of sweet corn and snap bean and damping-off of cucumber in a field soil. Soil biological and physical properties were measured as possible indicators of root rot suppressive potential. Regardless of amendment type or...
    Resource Type:
    Dissertation
    Full Text:
    assessed for their effects on root rots of sweet corn and snap bean and damping-off of cucumber in a

  • Effect of organic production system and harvest date on the quality of blackberry fruit for fresh and processed markets

    Creator:
    Liu, Mingyang
    Abstract:
    Blackberry (Rubus sp.) fruit are a good source of phenolic compounds and anthocyanins, and are consumed in fresh and processed forms. Though organic products become more popular, limited information is available about how different organic production methods affect the post-harvest quality of blackberry fruit. The objective of this project was...
    Resource Type:
    Masters Thesis
    Full Text:
    of 56 kg nitrogen/ha in 2012 and 2013. Samples were hand-picked three times per season at 1 wk

  • Examination of the role host-selective toxins play in fungal-plant interactions

    Creator:
    Andrie, Rachael M.
    Abstract:
    Pyrenophora tritici-repentis, causal agent of tan spot of wheat, produces multiple host-selective toxins (HSTs), including Ptr ToxA, encoded for by ToxA, Ptr ToxB, encoded for by ToxB, and Ptr ToxC. Variable distribution of these three HSTs among different isolates of P. tritici-repentis, both singularly and in all possible combinations, defines...
    Resource Type:
    Dissertation
    Full Text:
    primers. Application of our multiplex PCR assay revealed that ToxB homologs, designated PbToxB, are

  • Whole farm case studies : a how-to guide

    Creator:
    Murray, Helene
    Abstract:
    Calls for increased farmer involvement in research and extension programs have been numerous and well supported. One approach to integrate the collective knowledge and experience of agricultural scientists and farmers is through whole farm case studies (WFCS). An interdisciplinary team of 34 research and extension personnel at Oregon and Washington...
    Resource Type:
    Dissertation
    Full Text:
    /Washington case study project were to: (1) increase farmer involvement in research and education programs