First Paragraph: The destruction of California vineyards planted on AXR#1 rootstock by biotype B phylloxera, as well as the continued infestation of own-rooted vineyards, began a revolution in rootstock use in coastal and northern winegrape regions. The soils in these regions are ideal for phylloxera infestation, but the nearly complete reliance upon AXR #1 and St. George over the past 25 years has left viticulturists with little experience on which to base their selection of other rootstocks.
File Size0.7 MiB
DateJune 24, 2013
AuthorJim Wolpert, Andy Walker, Ed Weber, Larry Bettiga, Rhonda Smith, Paul Verdegaal