芳香木蠹蛾(Cosslus cossus Linnaeus)又名杨木蠹蛾,是林业生产上重要害虫之一,多为害杨、柳、榆、核桃、苹果、梨等树木。幼虫蛀入枝、干和根茎的木质部内为害,造成树木的机械损伤,破坏生理机能,使树势减弱,形成枯梢或枝干遇风易折,甚至整株死亡。近年来此虫在安新县发生较为严重,特别是2007年的秋末(10～11月间),常见大量芳香木蠹蛾的紫色老熟幼虫寻找越冬场所时在街道、路旁等处爬行的场景,严重威胁着当地的绿化建设和林业生产安全。 Cosslus cossus Linnaeus, also known as the codling moth, is one of the most important pests in forestry production. It is mostly harmful to poplar, willow, elm, walnut, apple and pear trees. Larvae bury the branches, stems and rhizomes within the xylem damage, resulting in mechanical damage to the tree, destroying the physiological function, so that the weakening of the tree, the formation of dry branches or stems meet the wind easy to fold, and even whole plant died. In recent years, the insects occurred more serious in Anxin County, especially in the autumn of 2007 (from October to November), when a large number of mature purple larvae of the aromatic codling moth caterpillar crawling in the streets, roadsides and other places looking for wintering places Scene, a serious threat to the local afforestation and forestry production safety.