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Showing 1 to 3 of 3 for “"grape downy mildew"”.

  1. Advancing Sustainable Grape Downy Mildew Management: Biopesticide Trials and Risk Assessment System

    Grape downy mildew, caused by Plasmopara viticola, significantly damages grape crops (Vitis spp.), reducing yields by up to 75% in unprotected vineyards. The Eastern US faces limited fungicide options due to resistance development and potential legal restrictions on EBDC and captan. The first study …

    vt Repository record for Advancing Sustainable Grape Downy Mildew Management: Biopesticide Trials and Risk Assessment System (opens in a new tab)

  2. Fungicide Sensitivity of Erysiphe necator and Plasmopara viticola from Virginia and nearby states

    … was undertaken to determine the sensitivity of grape downy mildew (DM, Plasmopara viticola) and powdery mildew (PM, Erysiphe necator) to commonly used single-site fungicides in Virginia and nearby states. DM and PM isolates were collected from 2005 to 2007. In grape leaf disc bioassays, 92% of …

    vt Repository record for Fungicide Sensitivity of Erysiphe necator and Plasmopara viticola from Virginia and nearby states (opens in a new tab)

  3. Characterization of fungicide resistance in grape powdery and downy mildew using field trials, bioassays, genomic, and transcriptomic approaches: quinoxyfen, phosphite, and mandipropamid

    … and oomycete pathogens is a serious problem in grape production. Quinoxyfen is a fungicide widely used against grape powdery mildew (Erysiphe necator). In 2013, E. necator isolates with reduced quinoxyfen sensitivity (designated as quinoxyfen lab resistance or QLR) were detected in Virginia. …

    vt Repository record for Characterization of fungicide resistance in grape powdery and downy mildew using field trials, bioassays, genomic, and transcriptomic approaches: quinoxyfen, phosphite, and mandipropamid (opens in a new tab)