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FANLEAF & RUGOSE WOOD



Rugose wood virus can cause over-growth of some vines on rootstocks
Rugose wood virus can cause over-growth of some vines on rootstocks
Photo credit: Graeme Fletcher
Look For Look For Notes

   LOOK FOR


    Look for in leaves
  • Fan shaped leaves
  • Yellowed and blotched leaf blades (mosaic)
  • Yellow banding along veins in late summer

   CONDITIONS

  • FANLEAF
  • Fanleaf-affected vines occur in patches
  • Fanleaf virus is widespread in New Zealand. In Australia it occurs mainly in the Rutherglen-Corowa area.
  • The three main symptom types are fanleaf, yellow mosaif and vein banding
  • RUGOSE WOOD
  • Corky bark (GVA and GVB), stem pitting and other virus often occur together
  • These viruses cannot be identified in the field. They cause graft imcompatibility in some vines.

OTHER FANLEAF & RUGOSE WOOD IMAGES

Fanleaf affected vines with yellow mosaic symptoms often occur in patches in the vineyard Rugose wood virus may cause incompatibility at the graft-union, restricting sap flow and shoot growth Close-up view; note the black line

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