Skip to Left navigation Skip to Main content Skip to Footer

University of Minnesota Extension
www.extension.umn.edu
612-624-1222

Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous Trees > Hackberry > Growths or bumps on leaves

Print Icon Email Icon Share Icon

Hackberry > Leaves > Growths or bumps on leaves

1 of 2
  • Image: Hackberry nipple gall 1
  • Image: Hackberry nipple gall 2
  • Image: Hackberry nipple gall 3

Hackberry 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
2 of 2
  • Image: Hackberry blister gall 1
  • Image: Hackberry blister gall 2
  • Image: Hackberry blister gall 3

Hackberry blister gall
Pachypsylla celtidisvesicula

  • Small, BB-like, 1/8 inch wide raised growths on upper leaf surface
  • Adults are light brown with flecks of creamish-white and look like miniature cicadas; 1/8 to 3/16 inch long
  • More information on Hackberry blister gall

Don't see what you're looking for?

© Regents of the University of Minnesota. All rights reserved. The University of Minnesota is an equal opportunity educator and employer.