Grasshoppers, cockroaches and wireworms are the most common subterranean insects that damage wheat in the spring. They mostly occur after turning green wheat to filling stage. There are three main methods for its prevention and control. One is poisoning soil. Per acre with 5% phoxim granules 2 kg, or 3% phoxim granules 3 ~ 4 kg, or 2% methylisofluosides powder 2 kg, 30 ~ 40 kg of fine soil, mix well after opening Gully application, or after the application of submerged ridges, followed by scratching and covering the soil, can effectively control cockroaches and golden needleworms. The second is pouring medicine. Per acre with 40% methyl isofluosal or 50% phoxim 0.5 kg, 750 kg of water, Shun ridge pouring facilities, have special effects on cockroaches and wireworm. The third is poison bait. Use 5 kg of wheat bran or baking powder, add the appropriate amount of water and 40% methyl isofluosal or 50% 1605 EC 50 grams after sauteing, and mix well and spread it in the field in the evening, 2 to 3 kg per mu. The control effect can reach more than 90%. Rongcheng Jingyi Oceanic Technology Company Limited , https://www.jingyifoods.cn