Pest Profile

Fall Armyworm
Spodoptera frugiperda
  • Fall armyworm caterpillar
  • Early instar fall armyworm
  • Early instar fall armyworm feeding in plant whorl
  • Male and female adult fall armyworm moths

Management guide

Pest Description

Damage from the fall armyworm occurs in midsummer. Larvae cut large holes in whorl-stage leaves. Later, large holes may be cut in the stalks at the nodes.

Source of information

J.P. Michaund (

Pest photo source

J.P. Michaud, Wendy Johnson, KSU Entomology