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THRIPS AND EARWIGS



Black plague thrips (1 mm long) feed in grape flowers and young foliage
Black plague thrips (1 mm long) feed in grape flowers and young foliage
Photo credit: David Madge
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   CONDITIONS

  • THRIPS are small, narrow insects that swarm in high numbers and can scar berries.
  • Black plague thrips are narrow, dark grey to black, and along with other thrips, are abundant in some years but rarely causes damage. May swarm in clouds when disturbed.
  • EUROPEAN EARWIGS can be a pest but mostly are beneficial.
  • European earwigs chew holes in leaves and may defoliate shoots in spring. They feed at night. During the day they shelter under bark or leaf litter.

OTHER THRIPS AND EARWIGS IMAGES

When thrips feed on grapes they produce small brown scars on berries European earwigs (12 mm) eat vine leaves in early spring and sometimes eat other insects (see page 71)

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