Grapevine diseases can be caused by viral, bacterial and fungal pathogens and/or combination of them. Infections by these pathogens can have severe negative impact on vine health and grape production.  Diseased vineyards are not physically, economically and ecologically sustainable. Located in Davis, CA, Agri-Analysis continues to be the center of excellence in testing grapevine viruses and diseases since 1981.  Our grapevine disease testing service can help identity the exact cause of a diseases and help track and trace its potential origin. Testing is a value added investment to help clients make informed decisions and mitigate risks in these and related areas:

1) Source and screen new planting materials such as budwood, rootstocks; and finished products from nurseries and/or other sources;

2) Survey the health status of existing vineyards to make informed management decisions;

3) Meet requirements of federal, state, and local programs such as the USDA Tree Assistance Program (TAP);

4) Meet requirements of various sustainability programs such as Napa Green;

5) Diagnosis of vineyard abnormalities such as leaf reddening, sudden vine collapse, stunted growth, cankers, diebacks, uneven lignification, crown gall, low brix, delayed ripening, and abnormal wine chemistry characteristics, etc.

6) Due diligence in vineyard transactions for both buyers and sellers;

7) Positively identify bed blotch and/or LR3 and other virus infected vines for elimination so that they do not become an innoculum source for insect-mediated new infections.

If you have any of these needs, please contact us, or download our sample submission form here.