California Agriculture Research Article - Vineyard nutrient needs vary with rootstocks and soils
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$163 billion grape industry at risk due to spread of grapevine red blotch virus with no known treatment
$3 million grant given to institutions in California and Oregon to address unknowns of disease and mitigate its effects on grape production, wine quality. Less than an hour from UC Davis, lie the towns of Napa and Sonoma, both hubs of the $163 billion US grape industry. California-grown grapes makes up 90% of the country’s wine production, yet they are at risk as a currently untreatable grapevine disease spreads rapidly across the country but especially in California and Oregon vineyards.
Ancient, heat-hardy wine grapes are being resurrected in Spain to deal with rising temperatures. Worried producers in Bordeaux—where Cabernet and Merlot have long ruled—have approved the use of seven new wine grapes from Portugal, Spain and southern France in their blends. The University of California at Davis recently released five new hybrid grape varieties—its first such release since the 1980s—to resist vine-killing insects expected to proliferate as winters warm.
The United Nations General Assembly declared 2020 as the International Year of Plant Health (IYPH). The year is a once in a lifetime opportunity to raise global awareness on how protecting plant health can help end hunger, reduce poverty, protect the environment, and boost economic development.
Ontario Grape and Wine Research Incorporated invite research proposals for the Research and Innovation Development Initiative (R&ID) component for the Marketing Vineyard Improvement Program (MVIP). The objective of this program is to provide funds to improve the quality, productivity and adaptability of grape and wine production by promoting industry-wide access to innovative tools, technologies, resources, knowledge and information for grape and wine making.
Viruses are of great concern in vineyards. They cost the California wine grape industry as much as $91,661 per acre over the life of a vineyard, according to a 2015 economic study of the North Coast wine-growing region. As a first step towards managing viruses, growers are encouraged to plant certified material regulated by the California Registration and Certification program. There are risks in sourcing material from stocks that are not subject to the same level of regulation. We surveyed ...
XI International Symposium on Grapevine Physiology and Biotechnology, Stellenbosch (South Africa), October 11-15, 2020
XI International Symposium on Grapevine Physiology and Biotechnology, Stellenbosch (South Africa). The symposium, organised under the auspices of the International Society of Horticultural Science (ISHS), will be hosted on the African continent for the first time. During the sessions and keynote lectures, the latest trends in grapevine physiology and biotechnology research with a focus on the chosen theme of “Grapevine Interactions” will be discussed
Abstracts of oral and poster presentations given at the 11th International Workshop on Grapevine Trunk Diseases, Penticton, BC, Canada
The 11th International Workshop on Grapevine Trunk Diseases (IWGTD) was held in Penticton, British Columbia, Canada, on July 7–12, 2019. This workshop was chaired by Dr. Úrbez-Torres and organized by the Agriculture and Agri-Food Canada Plant Pathology Laboratory at the Summerland Research and Development Centre (SuRDC). The 11th IWGTD also marked the 20th Anniversary of the workshop, which has been organized every two years since 1999. Delegates were presented the first day with an overview...
LangeTwins Family Winery & Vineyards in Lodi has implemented a vineyard virus scouting, mapping and vine rogueing program aimed at managing leafroll and red blotch virus infections and preventing their spread. The program, used in newer plantings of red winegrape varieties (planted since about 2013) is modeled after a successful program used in South Africa where vine mealybug (Planococcus ficus) and leafroll viruses have been ongoing management issues in winegrape vineyards.