Integrated Pest Management

Cicadas

cicada

Periodical cicada (John Ghent, Bugwood.org)

cicada damage

Slits in branch created by egg-laying females (Pennsylvania Department of Conservation and Natural Resources, Bugwood.org)

cicada emergence holes

Periodical cicada emergence holes (Jim Occi, BugPics, Bugwood.org)

Pest Description

  • adults: 1 – 2 inches; clear, lacy wings held tent-like over body; make a telltale clicking or buzzing noise
  • immatures: live underground
  • shed skins from immatures can be found on the sides of host trees

Host Plants, Diet & Damage

  • many deciduous trees and shrubs
  • adults suck sap from plant branches, but damage is minimal
  • immatures suck sap from plant roots
  • most damage occurs when large populations of egg-laying females wound trees
  • excessive egg laying can score and kill small branches

Biology, Life Cycle & Damaging Life Stage

  • overwinter as immatures in the soil
  • require few to many years to develop
  • immature development occurs underground
  • pupate above ground on the sides of host plants
  • leave cast pupal skin stuck to tree
  • adults are active throughout summer
  • females lay eggs in slits cut in branches
  • mmatures drop from eggs to the soil and feed on underground roots
  • adult, egg-laying females are the damaging stage

IPM Recommendations

  • Damage to plants and trees is usually minimal; tolerate this insect.
  • The mobility of this insect makes insecticidal control difficult.
  • Cover small trees to exclude large populations of cicadas.