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Rose Mosaic Virus

FAST FACTS - ROSE MOSAIC VIRUS
by Nanette Londeree, Master Rosarian

SYMPTOMS

  • Wide variety of different chlorotic line patterns including yellow zigzags, bands or ringspots on leaves
  • Green or brown banding of veins (a dark green or brown color that parallels the veins) on leaves
  • Vein clearing on leaves
  • Leaf blades that are puckered and somewhat distorted around the chlorotic areas
  • Canes that have shorter than normal internodes, resulting in stunting or dwarfing of the plant
  • Possible reduced flower production, flower quality or overall plant vigor

    Rose Mosaic Virus CAUSE

  • A variety of different viruses; most commonly rose mosaic virus (RMV)

    OPTIMAL CONDITIONS

  • Most pronounced in spring; may disappear in summer and reappear as temperatures cool in fall

    TREATMENT

    Prevention:

  • Purchase roses that are grown on virus-free rootstock

    Elimination:

  • Tolerate symptoms if they have not impacted overall plant health
  • Destroy infected plants

    GOOD GUY / BAD GUY?

  • Mostly a nuisance if you donít like the unique markings on the leaves
  • May be a bad guy if overall plant health deteriorates


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    Last Modified: 08/06/2013