By James Villegas
LSU AgCenter
Fall armyworms, Spodoptera frugiperda, are chronic insect pests in the state, with more than 60 plants reported as hosts, including various pasture grasses (and lawns) and agronomic crops including corn, alfalfa, cotton, soybeans, grain sorghum, and rice. They migrate to Louisiana from neighboring regions like Florida, Texas, Caribbean islands, and Central-South America, with infestations most common from late July to early August.