沙枣尺蠖(Apochemia Cinerarius Frsch.)是沙枣的主要害虫之一,它直接威胁着我省沙枣树的发展和沙枣的产量。如张掖九龙江林场,1956年因受此虫危害,沙枣产量由年产8万斤下降到7千多斤,减产达90%以上,同时严重地阻碍了林木的生长。从1959年开始用飞机防虫,收到了一定效果。但是近一、二年来,出现了使用药剂浓度不断加大,而防治效果逐渐下降的情况。更严重的是,由于长期的大面积喷洒毒 Apochemia Cinerarius Frsch. Is one of the major pests of jujube. It directly threatens the development of jujube tree and the yield of jujube in our province. Such as Zhangye Jiulongjiang Forest Farm, 1956 due to the pest endangering, jujube production from an annual output of 80,000 pounds down to 7,000 kilos, down more than 90%, while seriously hampered the growth of trees. From 1959 on the plane pest control, received a certain effect. However, in the past one or two years, there has been a continuous increase in the concentration of pharmaceuticals used, and the control effect has been gradually declining. More seriously, due to long-term large area spray poison