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

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Delphinium > Holes in leaves

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  • Image: Japanese beetle 1
  • Image: Japanese beetle 2
  • Image: 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
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  • Image: 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

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