北沙参钻心虫(EpinotiaLeucatha Meyrick),是为害中药材北沙参的主要害虫,幼虫吐丝使心叶卷成簇,并潜入其内,抑制心叶正常生长;也钻蛀根茎,造成枯心苗或钻蛀花蕾,使之不能开花结籽。一般年份被蛀率为40％左右,减产1—3成,严重时被蛀率为80％以上,减产50％以上,甚至绝收。它还为害白芷、当归、防风、川芎等,造成不同程度的减产,现将该虫的发生规律及防治方法介绍如下: 一、形态及习性:成虫是个灰褐色的小型蛾子,前翅呈狭长形,翅基部灰褐色,前翅中带部分为发达的白色斑纹,静止时保 Epinotia Leucatha Meyrick, a major pest that attacks the Chinese traditional medicine, Radix Paeoniae Alba, larvae sprouts into a cluster of hearts and infiltrates into it to inhibit the normal growth of the heart and leaves; Miao or boring buds, so that it can not flowering seed. The average annual loss rate of about 40%, 1-3% cut, serious when the moth rate of 80% or more, cut more than 50%, or even absolute. It is also harmful to Angelica, Angelica, wind, Chuanxiong, resulting in different levels of reduction, now the occurrence of pests and prevention methods are described below: First, the morphology and habits: adult is a gray brown moths, forewing was elongated, Wings taupe, part of the forewing in the developed white markings, rest at rest