甘兰夜蛾(Barathra brascjcae Linre)又叫甘兰夜盗虫、钻心虫、甜菜夜蛾。我国东北、华北发生较多、西北、西南较少。主要为害甘兰、白菜、甜菜。大发生年也为害其他蔬菜、荞麦、亚麻等多种作物。仅幼虫为害。轻时,将叶咬成孔洞和缺刻。重时,把叶肉全部吃光,仅剩叶脉。大 Banyan’s night worm (Barathra brascjcae Linre) also called cabbage night bug, borer, beet armyworm. China’s northeast, north China occurred more, northwest, southwest less. Mainly for Harlan, cabbage, beet. Occurrence of the year also harmful to other vegetables, buckwheat, linen and other crops. Larvae only harm. Light, the leaves bite into holes and nicks. Heavy, eat all the leaves, leaving only veins. Big