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ARS Home » Pacific West Area » Davis, California » Crops Pathology and Genetics Research » Research » Publications at this Location » Publication #309366
Title: Guide to managing vineyard trunk diseases in Lodi

Author
item Baumgartner, Kendra
item TRAVADON, RENAUD - University Of California

Submitted to: Internet Web Page
Publication Type: Other
Publication Acceptance Date: 9/19/2013
Publication Date: 9/19/2013
Publication URL: http://www.lodigrowers.com/guide-to-managing-vineyard-trunk-disease-in-lodi/
Citation: Baumgartner, K., Travadon, R. 2013. Guide to managing vineyard trunk diseases in Lodi. Internet Web Page.

Interpretive Summary: Trunk diseases (wood-canker diseases) threaten all California vineyards due to widespread distribution of the fungal pathogens. The infections are chronic and occur each year. Trunk diseases in mature vineyards reduce yields and increase management costs to the point where the vineyard is no longer profitable. Use this guide to identify the different trunk diseases: Botryosphaeria dieback, Esca, Eutypa dieback, and Phomopsis dieback. They often occur in mixed infections, with more than one trunk pathogen infecting the same grapevine. Nonetheless, practices to prevent infection are the same for all trunk diseases. This guide gives instructions on how to make management decisions, depending on the age of your vineyard. More importantly, this guide will help you understand the need to adopt preventive practices in young vineyards, and perform these practices at appropriate times on an annual basis.

Technical Abstract: Trunk diseases (wood-canker diseases) threaten all California vineyards due to widespread distribution of the fungal pathogens. The infections are chronic and occur each year. Trunk diseases in mature vineyards reduce yields and increase management costs to the point where the vineyard is no longer profitable. Use this guide to identify the different trunk diseases: Botryosphaeria dieback, Esca, Eutypa dieback, and Phomopsis dieback. They often occur in mixed infections, with more than one trunk pathogen infecting the same grapevine. Nonetheless, practices to prevent infection are the same for all trunk diseases. This guide gives instructions on how to make management decisions, depending on the age of your vineyard. More importantly, this guide will help you understand the need to adopt preventive practices in young vineyards, and perform these practices at appropriate times on an annual basis.