Skip to Main navigation 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? > Annuals and Perennials > Aster > Holes in leaves

Print Icon Email Icon Share Icon

Aster > Holes in leaves

1 of 4
  • Checkerspot 1
  • Checkerspot 2

Checkerspot butterfly caterpillar

  • Occurs May and June
  • Chews holes in leaves of perennials
  • Grows over 1 inch long, black with spines
2 of 4
  • Animal damage 1
  • Animal damage 2
  • Animal damage 3

Deer, rabbit and other animal damage

  • All of large sections of leaves are cut off and missing, leaving only a stem or petiole (leaf stalk)
  • Animal foot prints or dropping near plant
  • Often happens suddenly, overnight
  • More information on Deer damage...
3 of 4
  • Japanese beetle 1
  • Japanese beetle 2
  • Japanese beetle 3

Japanese beetles

  • Occur late June to early September
  • Skeletonize leaves, i.e. chews tissue between veins, leaving foliage lace-like
  • Feed on blossoms, chewing holes in them
  • Up to almost 1/2 inch long; iridescent green with five white patches along the side of its body and two white patches on the tip of the abdomen
  • More information on Japanese beetles...
4 of 4
  • Hail 1
  • - CLICK PHOTO TO ENLARGE -

Hail

  • Ragged holes in foliage
  • Appears suddenly, after sever weather
  • Affects very local area only, sometimes individual plants show damage
  • Plants outgrow damage, leaves produced after hail event are undamaged

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. Privacy