Experts from Cornell University and the University of California have teamed to present a webinar, March 27, on an emerging grapevine disease caused by the grapevine red-blotch associated virus.
The disease was first identified in 2008, and it has been confirmed in California, New York, Virginia, Maryland, Pennsylvania, Texas and Washington, according to the news release.
Of particular concern to winegrape growers is the disease's ability to reduce Brix levels in fruit.
Researchers are still learning about the virus, but they do know it can be transmitted through grafting infected material onto healthy material.
Marc Fuchs, a Cornell University virologist, will speak about the virus, its association with red blotch disease and its presence in vineyards.
Rhonda Smith, a UC Cooperative Extension farm advisor in Sonoma County, will provide an Extension perspective of field observations and impact on vines.
Deborah Golino, who heads the UC Davis Foundation Plant Services, will speak on testing and identification of vines and planting material.
The webinar is interactive, and time will be set aside between preseentations for questions.
The webinar is free, but you must pre-register by 8 a.m., Eastern daylight time, March 27.
For more information, download the webinar flier from the National Clean Plant Network.