polyphagous

polyphagous insects or birds.

杂食性昆虫或鸟

The beet armyworm, Spodoptera exigua (Hubner), is a polyphagous pest with worldwide distribution mainly in tropical and subtropical regions.

80代中后期开始，甜菜夜蛾连续多在我国各省份爆发成，成为农业生产上的一种难性害虫。