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Hackberry > Leaves > Growths or bumps on leaves

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  • Image: Hackberry nipple gall 1
    Credit: J. Hahn, University Of Minnesota
  • Image: Hackberry nipple gall 2

    Credit: W. Cranshaw, CO State University, Bugwood.org

  • Image: Hackberry nipple gall 3

    Credit: S. Katovich, USDA Forest Service, Bugwood.org

  • - CLICK PHOTOS TO ENLARGE -

green arrowHackberry nipple gall
Pachypsylla celtidismamma

  • Circular, nipple-like swellings that project from the undersides
    of leaves
  • There are yellow discolorations on upper leaf surface above the nipple galls
  • Premature leaf drop can occur during heavy infestations
  • Adults are light brown with flecks of creamish-white and look like miniature cicadas; 1/8th to 3/16th long
  • More information on Hackberry nipple gall...
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  • Image: Hackberry blister gall 1
    Credit: J. Hahn, University Of Minnesota
  • Image: Hackberry blister gall 2

    Credit: J. Hahn, University Of Minnesota

  • Image: Hackberry blister gall 3

    Credit: W. Cranshaw, CO State University, Bugwood.org

  • - CLICK PHOTOS TO ENLARGE -

green arrowHackberry blister gall
Pachypsylla celtidisvesicula

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