European Crane Fly
Canadian Forest Service, Bugwood.org

Damage

Adult Crane Flies do not cause harm to lawns or sting, but it is the larvae that damages lawns. European Crane Fly larvae are 1 inch long worm-like brownish maggots that eat grass roots, creating brown-yellow patches in lawns during the dry, summer season.
 

Location

European Crane Flies are predominantly found in the Pacific Northwest and New England. 

Solutions

Cultural Solutions

  • Keeping the lawn well maintained and vigorous will reduce European Crane Flies.
  • Use thatch removal and proper aeration also reduces Crane Flies.