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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Annuals and Perennials > Black Eyed Susan (Rudbekia) > Holes in leaves

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Black Eyed Susan (Rudbekia) >Holes in leaves

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  • Image: slugs 1
  • Image: slugs 2
  • Image: slugs 2


  • Occurs spring and summer
  • Chews ragged, irregular shaped holes in leaves that cross the veins
  • Soft-bodied, brownish, up to two or more inches long; snails without shells
  • More information on Slugs...
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  • Image: Checkerspot 1
  • Image: Checkerspot 2

Checkerspot butterfly caterpillar

  • Occurs May and June
  • Chews holes in leaves of perennials
  • Grows over 1 inch long, black with spines
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  • Image: animal damage 1
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  • Image: 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...
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  • Image: Hail 1


  • 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

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