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Green Lacewing

FAST FACTS - GREEN LACEWINGS
by Nanette Londeree, Master Rosarian

SIGNS

  • Slender pale green insect, ½ - ¾ inch long with transparent, highly veined wings and immense golden eyes
  • Grayish to brown, mottled and spiny larvae with flattened body tapered at the tail, distinct legs and large pinchers
  • Spherical, parchment-like, silken cocoons attached to plants or under loose bark
  • Eggs at the ends of long silken stalks singly or in clusters

    SYMPTOMS

  • None

    CAUSE

  • Green lacewings from the genera Chrysoperla and Chrysopa

    OPTIMAL CONDITIONS

  • Commonly found in agricultural, landscape, and garden habitats
  • In mild winter areas, can be found throughout the year
  • Adults in the genera Chrysoperla feed only on nectar, pollen and honeyed dew; those in the genera Chrysopa consume these as well as well as some insects
  • Larvae are the voracious hunters
  • Adults are active fliers during evening and night with a characteristic, fluttering flight, often being drawn to light

    TREATMENT

    Prevention:

  • None – these insects should be encouraged to stay in your garden by providing nectar-producing plants along with some flowering weeds, a source of water and a low level of aphids

    Elimination:

  • None - you don’t want to eliminate these from the garden

    GOOD GUY / BAD GUY?

  • Definitely a good guy; the larvae as predators and the beautiful adults as pollinators


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    Last Modified: 08/06/2013