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Willow > Leaves > Dots, spots or blotches on leaves

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  • Willow blight 1

    Credit: Mn Dept of Natural Resources Archive, Mn DNR, Bugwood.org

  • Willow blight 2

    Credit: Mary Ann Hansen, Virginia Polythechnic Institute and State University, Bugwood.org

  • - CLICK PHOTOS TO ENLARGE -

green arrowWillow blight
Ventura saliciperda and Glomerella miyabeana

  • Young leaves turn black, shrivel and fall off as buds open in spring
  • Shoots turn black, wilt, curl over and die
  • Small, black, sunken cankers form on twigs causing twig dieback and shoot blight
  • Infection from V. saliciperda limited to new shoots; G. miyabeana may infect older twigs
  • Common in cool, wet weather
  • More information on Willow blight...
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  • Willow lace bug 1

    Credit: J. Hahn, University of Minnesota

  • Willow lace bug 2

    Credit: David Cappaert, Michigan State University, Bugwood.org

  • Willow lace bug 3

    Credit: J. Hahn, University of Minnesota

  • - CLICK PHOTOS TO ENLARGE -

green arrowWillow lace bug
Corythucha elegans

  • White or yellow speckled or pinprick discolorations on upper leaf
  • Leaves can look bleached when infestations are severe
  • Black, shiny spots and shed skins on underside of leaves
  • Lacebugs are up to ΒΌ inch long; light colored bodies with dark colored spots; intricate, lacy wings
  • More information on Willow lace bug...

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