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Impatiens > Leaves > Cupped or distorted leaves

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  • Impatiens Necrotic Spot Virus 1
    Credit: Robert Wick, University of Massachusetts, Bugwood.org
  • Impatiens Necrotic Spot Virus 2

    Credit: Jennifer Olson, Oklahoma State University, Bugwood.org

  • Impatiens Necrotic Spot Virus 3

    Credit: Jeffrey W. Lotz, Florida Department of Agriculture and Consumer Services, Bugwood.org

  • - CLICK PHOTOS TO ENLARGE -

green arrowImpatiens Necrotic Spot Virus (INSV)

  • Symptoms are extremely variable
  • Stunted growth and wilting may occur
  • Leaf distortion; ringspots or black spots on leaves and stems; blackish/purplish coloration along leaf veins
  • Tip dieback and in some cases entire plant will collapse
  • Lab test needed to identify INSV since it is difficult to diagnose on symptoms alone
  • More information on INSV
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  • Plant growth regulator herbicide injury 1
    Credit: Michelle Grabowski, University of Minnesota Extension
  • Plant growth regulator herbicide injury 2

    Credit: Michelle Grabowski, University of Minnesota Extension

  • Plant growth regulator herbicide injury

    Credit: Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org

  • - CLICK PHOTOS TO ENLARGE -

green arrowPlant growth regulator herbicide injury
(2, 4-D, Dicamba, etc.)

  • Leaves are twisted, cupped, or distorted
  • Leaves may appear thick and leathery
  • Veins in leaves are thick and close together
  • Side of the plant closest to the herbicide application is most severely affected
  • Different species of plants in spray area will show similar symptoms
  • More information on herbicide damage

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