Fall Armyworm

Fall Armyworm: June - August

Phil Sloderbeck, Kansas State University, Bugwood.org

Fall Armyworm is attracted to corn planted very late in the growing season.

Fall Armyworm, Spodoptera frugiperda Smith, can be distinguished from other armyworm species larvae or corn earworm larvae by looking at the insect’s head. This pest ” head has a predominant white, inverted Y-shaped suture between the eyes.”

Damage can be found on a corn plant’s leaves and may be found on its tassels and/or ears. Damage done will leave ragged-edges holes and if severe can resemble hail damage.

Management by insecticide is not usually economical but if an infestation is exceptionally bad or the corn crop is under stress it may be necessary.