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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Annuals and Perennials > Columbine > Holes in leaves

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Columbine > Holes in leaves

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  • Image: columbine sawfly 1
  • Image: columbine sawfly 2
  • Image: columbine sawfly 3

Columbine sawfly

  • Occurs May to June
  • Chews leaf tissue starting along the sides of the leaves, leaving the midveins
  • Sawfly is caterpillar- or worm-like, grows up to 1 inch long, and is green
  • More information on Columbine sawfly...
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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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