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Cause: Uncinula necator, a a fungal disease common to all areas of the PNW. The disease tends to be more severe on the westside of the Cascades but is a chronic problem in arid districts where over-the-canopy irrigation is used for early-season frost protection or watering.
Grape phylloxera is an insect native to the eastern United States, where it subsists on native grape varieties. Most native varieties have developed a tolerance to the insect. Historically, grape phylloxera has been of minor concern in these growing areas.
AAPS Pharmaceutica is the Web portal for the American Association of Pharmaceutical Scientists (AAPS), a professional, scientific society of more than 10,000 members employed in academia, industry, government and other research institutes worldwide. Founded in 1986, AAPS aims to advance science
Weed Description: Woody vines that may grow prostrate along the ground or climb over other vegetation and objects. Wild grapes can form large thickets and choke-out much of the existing vegetation.
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Agrobacterium tumefaciens that infects more than 2,000 species of plants. Crown gall of grape is a major problem in cold climate regions. Wounds are necessary for infection to occur. Observations suggest that freeze injury wounds are highly conducive to infection.
Winterhardiness is a complex trait combining tolerances to several environmental stresses. If its oxidative stress tolerance was enhanced, then a plant's ability to survive winter might be improved.
Crown gall is a common, devastating grape disease that has been known to result in losses of entire vineyards in Kentucky. Besides grapes, over 600 types of plants are known to be susceptible to crown gall, including apples, stone fruits and brambles.