Rupestris stem pitting

Rupestris stem pitting - Rupestris stem pitting virus
Annemiek Schilder, MSU Plant Pathology

Rupestris stem pitting virus causes a slow decline of vinifera cultivars and interspecific hybrids. Tests have shown that the disease is widespread in French-American hybrids in commercial vineyards in the northeastern United States and Canada. The main symptoms are delayed bud break, poor spring growth, stunting of infected plants and a decline in yield. No leaf discoloration is observed. When the bark is peeled off the trunk, the wood may reveal the presence of small pits. This virus mainly spreads via planting material.


Photos: Tom Zabadal

Additional information

Search MSU Fruit CAT Alert newsletter for articles.
MSU Diagnostic Services
Special grape disease problems and controls (from Michigan Fruit Management Guide) (Download Adobe Acrobat Reader to view PDF files)

Site map About us Copyright/Linking

Funding for this web site provided by Project GREEEN, American Farmland Trust, EPA Region 5's Strategic Agricultural Initiative program, The National Foundation for IPM Education, the Center for Agricultural Partnerships and the MSU Integrated Pest Management Program
in collaboration with MSU Extension and the Michigan Agricultural Experiment Station.
Updated 12/11/07 Contact: J.N. Landis.