Agri-Analysis :: Grapevine Testing :: Seed Testing since 1981.

You are here: ATTENTION GROWERS: Agri-Analysis is the first laboratory to test for Grapevine Red Blotch Associated Virus (GRBaV). Please call us today at 1.800.506.9852 for more details.
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Testing for:
Lettuce Mosaic Virus Bacterial diseases Grapevine diseases Fungal diseases Seed Health Genetic Traits GMOs

Our New Location
930 Riverside Parkway, Suite #30
West Sacramento, CA 95605


Agri-Analysis LLC is a proud member of:

The Napa Valley Grape Growers Association

The California Seed Association

The American Phytopathological Society

Grapevine Fungal Disease Testing

Agri-Analysis Offers Testing for the following fungal diseases commonly affecting grapevines:

Eutypa Dieback is a progressive disease of the woody tissues of the grapevine. It is mainly found in older vineyards. Symptoms may not show for several years after infection. Initial symptoms usually appear on one arm and are best observed in mid- to late spring when shoots are 10 to 12 inches (25 to 30 cm) long. Leaves are cupped, yellowish and smaller than normal. Shoots are stunted and have fewer and smaller fruit clusters.

The fungus releases spores from the canker once the bark has weathered off. Most spores are released during late winter and early spring when temperatures are above 32ºF (0ºC) and more than 1/25 inch (1 mm) rainfall or snowmelt occurs. The fungus infects vines primarily through pruning wounds, which remain susceptible for a month or more.