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Basswood/Linden > Leaves > Leaf edges discolored

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  • Image: Deicing salt injury 1
    Credit: J. Hahn, University Of Minnesota
  • Image: Deicing salt injury 2

    Credit: J. Hahn, University Of Minnesota

  • Image: Deicing salt injury 3

    Credit: J. Hahn, University Of Minnesota

  • - CLICK PHOTO TO ENLARGE -

green arrowDeicing salt injury

  • Soil salt damage causes leaf edges or margins to appear burnt or scorched progressing toward the mid-vein
  • Run-off salt kills roots which results in die-back of most branches
  • Affected trees leaf out later than other non-infected trees
  • Damage most noticeable in spring
  • More information on Deicing salts...
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  • Image: Verticillium wilt 1
    Credit: J. O'Brien, USDA Forest Service, Bugwood.org
  • Image: Verticillium wilt 2

    Credit: C. Ash Kanner

  • Image: Verticillium wilt 3

    Credit: W. Jacobi, Colorado State University, Bugwood.org

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green arrowVerticillium wilt
Verticillium dahliae

  • Leaves turn brown from the edges and tips, wilt and die in severe infections
  • Leaves are small and yellowed in chronic infections
  • Leaf symptoms are often seen on only one or a few random branches in the canopy
  • Brown streaks often can be seen in the sapwood if the bark is peeled back, appearing as rings or arcs in a cross cut
  • Symptoms may develop over a single growing season, or over several years
  • More information on Verticillium wilt...
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  • Image: Drought stress 1
    Credit: R.L. Anderson, USDA Forest Service, Bugwood.org
  • Image: Drought stress 2

    Credit: N. Loewenstein, Auburn University, Bugwood.org

  • Image: Drought stress 3

    Credit: D. Hanson, University Of Minnesota

  • - CLICK PHOTOS TO ENLARGE -

green arrowDrought stress

  • Leaves wilt and turn brown at the tips and the margins first, then completely brown
  • Dead branches in the canopy
  • Leaves appear drooped or wilted within canopy
  • The ground beneath the tree is littered with yellow to brown leaves

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