昌平县是北京市盛产桃、李等鲜果的生产基地,仅桃树的栽植面积就有1.7万亩,年产鲜桃250—300万公斤。红颈天牛是桃、李树的毁灭性蛀干害虫,在该县为害日趋严重。据初步调查,桃树受害株率达30—50%,24年生李子大树株受害率70—95%。受害严重的树树势衰弱,产量降低,甚至枯死,这不仅影响了果树寿命、果品产量,也影响了果农的经济收益。为控制红颈天牛的为害,昌平县林业局的 Changping County, Beijing is rich in peach, plum and other fruit production base, only the planting area of ​​peach trees have 1.7 million mu, annual output of 2.5-300 million kilograms of peaches. Red-necked Beef Cattle is a devastating pest of peach and plum trees and is becoming more and more devastating in the county. According to the preliminary investigation, peach tree damage rate of 30 - 50%, 24-year-old plum tree damage rate of 70-95%. The severely damaged trees are weak, the yield is reduced, and even dead, which not only affects the life span of fruit trees and the output of fruits, but also affects the economic benefits of the growers. To control the damage of red-necked cattle, Changping County Forestry Bureau’s