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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Fruit > Grape > Webbing on fruit

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Grape > Fruit > Webbing on fruit

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  • Image: Grape Berry Moth 1
  • Image: Grape Berry Moth 2
  • Image: Grape Berry Moth 3

Grape Berry Moth

  • Larvae feed on berries causing them to ripen prematurely and split open and shrivel
  • Dark tunnels may be apparent from larvae feeding just below the skin
  • Larvae present from June through August
  • Late instars are green to purple in color, and are 1/3 inch in length when fully grown
  • Spider-like webbing covering several berries in a cluster may be present
  • More information on Grape Berry Moth

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