近年淮北冬麦区地下害虫发生为害有逐年加重的趋势，发生密度大，有的乡镇麦田蝼蛄、蛴螬、金针虫常混合发生，常造成缺苗、断地，严重影响小麦的稳产高产。为解决这一问题，我们自1990年以未，先后于校农场试验地及校外基地，分别采用了不同的防治方法，选用不同的药剂，相同? In recent years, the occurrence of underground pests in the winter wheat area of ​​Huaibei tends to increase year by year. The occurrence density is high. Some townships such as barbary, catfish and golden needle often mix and often cause lack of seedlings and severely damaged wheat fields, which seriously affect the yield and stability of wheat. In order to solve this problem, we have adopted different methods of prevention and treatment since the beginning of 1990, one after another in our school farms and off-campus bases.