核桃举肢蛾(俗名核桃黑)已经成为我国20多个省、市、自治区主要核桃产区的重要害虫。严重影响核桃产量和品质。近年有加重危害趋势,一般减产40～50％,严重发生年,黑果率达90%以上,甚致绝收。据统计,仅河北省年经济损失达950～2150万元。 Walnut Liner moth (common name walnut black) has become China’s more than 20 provinces, municipalities and autonomous regions, an important pest major walnut areas. Seriously affect the yield and quality of walnut. In recent years, aggravating the trend of harm, the general reduction of 40 to 50%, a serious year, black fruit rate of 90% or more, even the vast sum of income. According to statistics, only the annual economic loss in Hebei Province reaches 950-215 million yuan.