棉尖蟓(虫甲)是北票县主要苗期害虫之一,历年对棉花、甜菜、蔬菜等作物的胚根、生长点或嫩叶危害严重,常常造成缺苗2～3成。过去,曾用六六六、甲六粉、1605粉、敌百虫等农药进行防治,防效较差。通过几年摸索和参考外地经验,我们用50％甲胺磷乳剂防治棉大蟓(虫甲)、蒙古灰蟓(虫甲)、黑绒金龟,网目砂潜等地下害虫,取得了较好的效果。去年4月份,我县良种繁育场塑料大棚内发生了棉尖蟓(虫甲),大棚 Cotton spider mite (pest) is one of the main seedling pests in Beipiao County. It has had serious harm to the radicle, growth point or young leaves of cotton, sugar beet, vegetables and other crops over the years and often causes 2 to 3 percent of the missing seedlings. In the past, we used six hundred sixty-six, A six powder, 1605 powder, trichlorfon and other pesticides for prevention and control with poor control effects. Through several years of exploration and reference to foreign experience, we use 50% methamidophos emulsion to prevent and control cotton mulch (insect A), Mongolian gray moth (pest), black velvet beetle, mesh sand submersion and other underground pests, and achieved better Effect. Last year in April, the county seed breeding farm plastic shed occurred in the cotton aphid (insects), shed