亚麻为我区主要油料作物,每年播种面积300万亩左右。亚麻细卷蛾(Diceraturasp.)是为害亚麻蒴果的主要害虫。在我区的四盟二市发生普遍,尤以乌盟的北部、锡盟的南部亚麻主产区为害严重。幼虫蛀食蒴果,一般减产5％左右,重者达20％,影响亚麻的品质和产量。该虫的形态及简单生活习性, Flaxseed is the main oilseed crop in our region, with an annual sown area of ​​about 3 million mu. Diceraturasp. Is the major pest that affects flax capsules. In our area, the four unions in the two cities are widespread, especially in the northern part of the Uzbekistan and the main flax area in the southern part of the Ximeng area. Larvae eat capsules, the general reduction of about 5%, severe cases up to 20%, affecting the quality and yield of flax. The insect morphology and simple habits,