花椒窄吉丁虫主要以幼虫取食韧皮部,以后逐渐蛀食形成层,老熟后向木质部蛀化蛹孔道,成虫取食椒叶进行补充营养,被害树干大量流胶,直至树皮腐烂、干枯脱落,严重影响营养运输,可导致叶片黄化乃至整个枝条或树冠枯死。防治措施:1.清园消毒。在冬季清理应彻底,将病虫枝叶集中烧毁或深埋,同时喷3~5度石硫合剂可杀死出蜇红蜘蛛、蚜虫的成虫、若虫,还可预防花椒枝干病害,如流胶病等。2.精细管理。合理的修剪是花椒树高产的前提。通过修剪构成一定的丰产树形,及时去除病虫枝,控保持树势健壮,达到优质、高产、稳产的目的。3.药剂防治。花椒树发芽前,用 Pepper narrow jibinus mainly larvae feeding phloem, then gradually eaten layer, after aging to xylem moulting pupal hole, adults take the leaves to supplement nutrition, a large number of victimized tree trunk flow gum, until the bark decay, dry Shedding, seriously affecting the transport of nutrients, can lead to yellow leaves and even the entire branches or canopy dead. Control measures: 1. Qingyuan disinfection. In the winter clean-up should be thoroughly burned or buried deep in the pests and leaves, while spraying 3 to 5 degrees stone sulfur mixture can kill stings spider mites, aphids adults, nymphs, but also prevent pepper disease, such as plastic flow Sick and so on. Fine management. Reasonable pruning is the prerequisite for high yield of pepper tree. Through the pruning to form a certain high yield tree, timely removal of pests and branches, control to maintain robust tree vigor, to achieve high-quality, high yield, stable production. 3. Pharmacy control. Pepper tree before germination, use