This pest eats the maize bud, which reduces crop growth and yield. The fall armyworm acts as scraper, defoliator and cutter of maize. It affects a large number of crops but prefers maize.
It enters the maize bud and from there it eats the plant. If another fall armyworm enters the same plant, the larger one eats the smaller one. Thus, the fall armyworm controls its own population.
The pupa is normally in the soil.
Wasps, ants, spiders and several other insects eat and kill fall armyworms.
Rain frequently kills young fall armyworms.