核桃果象甲属鞘翅目象甲科 ,又名核桃长足象甲、核桃甲象虫 ,农民还形象地称之为核桃象鼻虫。近几年来随着核桃栽培面积的不断扩大 ,在一部分产区由于果农放松管理造成核桃果象甲蔓延、暴发 ,导致核桃年年减产 ,1 997、 1 998两年因核桃果象甲危害 ,在长阳县西部的榔坪、乐园、 Walnut fruit as a Coleoptera, such as a family, also known as long walnut walnut A, walnut A as insects, peasants also vividly call walnut weevil. In recent years, with the growing area of ​​walnut cultivation, in some areas due to the management of fruit farmers to relax walnut fruit as a result of the spread, outbreak, resulting in annual output of walnut, 997, 1 998 two years due to walnut fruit askew in the Changyang County, western Lang Ping, Paradise,