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

You are here: To better serve you, Agri-Analysis is now located in Davis within walking distance to UCD campus.
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Testing for:
Lettuce Mosaic Virus Bacterial diseases Grapevine diseases Fungal diseases Seed Health Genetic Traits GMOs

Our New Location:
950 West Chiles Road
Davis, CA 95618


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.