Cover of tip sheet

Michigan Grape Facts: Managing Grapevine Leafroll Disease

DOWNLOAD FILE

April 27, 2020 - Author: , , , , and

Grapevine leafroll disease is a major viticultural problem that can be found in every wine, juice and table grape-growing region in the world. Unfortunately, Michigan is no exception. There are several different viruses associated with this disease, all belonging to the same virus family, Closteroviridae. There is great diversity within this family; together they are all known as grapevine leafroll-associated viruses (GLRaV) and each discovered virus has been named with a consecutive number.

Vineyard surveys conducted in Michigan during 2010 and 2016 revealed the presence of viruses that cause grapevine leafroll disease. GLRaV-3 was most common, followed by GLRaV-2. This matches the pattern seen in other grape production regions, where GLRaV-3 is the most widespread grapevine virus. Although sources of grapevine leafroll disease resistance have not yet been identified, growers can make use of the management strategies presented here to reduce the impact of grapevine leafroll disease in their vineyards.

DOWNLOAD FILE

Tags: grape facts, grapes, michigan grape facts


Related Topic Areas

Fruit & Nuts, Integrated Pest Management, Agriculture, Grapes


Authors

Timothy Miles

Timothy Miles
517-355-3964
milesti2@msu.edu

Laura Miles

Laura Miles
517-355-3504
lmiles@msu.edu

Rufus Isaacs

Rufus Isaacs
517-355-6619
isaacsr@msu.edu

Mark Longstroth

Mark Longstroth
269 657-8213 x4
longstr7@msu.edu

Jan Byrne

Jan Byrne
517-355-3504
byrnejm@msu.edu

Jerri Gillett

Jerri Gillett
517-355-7539
gillett@msu.edu

Other Documents in this Series

Accessibility Questions:

For questions about accessibility and/or if you need additional accommodations for a specific document, please send an email to ANR Communications & Marketing at anrcommunications@anr.msu.edu.