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Katydid

FAST FACTS - KATYDIDS
by Nanette Londeree, Master Rosarian

SIGNS

  • Green, grasshopper-like adult insects with shorter bodies and longer antennae than grasshoppers
  • Wingless grasshopper-like nymphs that are the same color as the material they are feeding on
  • Nymphs with black and white banded antennae
  • Gray, oval 1/8- to 1/4-inch long eggs in two overlapping rows on twigs and leaves Soft chirping sound at night

    SYMPTOMS

  • Chewed edges of leaves, flowers or buds
  • Holes in leaves, flowers or buds
  • Chewed leaves on citrus or stone fruits; gray scar tissue on citrus fruit

    CAUSE

  • Katydids, belonging to the family Tettigoniidae

    OPTIMAL CONDITIONS

  • Nymphs appear in April and May and require 2 to 3 months to mature
  • Produce one generation a year
  • Generally feed at night
  • Fly at night and hide in long grasses near the plants they feed on during the day

    TREATMENT

    Prevention:

  • Remove long grass around affected plants to eliminate hiding places
    Encourage biological control by attracting their predators to the garden – bats, birds and snakes

    Elimination:

  • Elimination is generally not necessary

    GOOD GUY / BAD GUY?

  • This guy is most often just a nuisance and doesn’t cause significant damage

  • The photo of the Katydid is by Baldo Villegas from the extraordinary website: http://members.tripod.com/buggyrose/irosepests.htm


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    Last Modified: 08/06/2013