木麻黄
The larvae feed on various grasses, including rice, wheat, "Cynodon", "Pennisetum clandestinum", "Sorghum bicolor", "Oryza sativa", and trees such as "Casuarina equisetifolia". They are considered one of the major international agricultural pests on crops and pastures. Unlike other insects, armyworm caterpillars of their sixth instar do not excrete uric acid, instead they excrete urea as nitrogenous wastes.