一一般情况微山湖区本年普遍发生秋蝗,其中以湖西的沛县和铜北较为严重。笔者于八月六日奉中央农业部病虫害防治司之命协助徐州治蝗工作组前往进行防治,被分派在沛县工作。沛县秋蝗多发生在二区湖地。本年因旱湖水特低,大部湖底均被暴露。靠水最近处有约半里宽的三稜草地带,土面湿度较大。往上是藕 A general situation Weishanhu District autumn seasons generally occur this year, of which Peixian and Hu Bei more serious. On August 6, the author, assisted by the order of the Division of Disease Control and Prevention of the Central Ministry of Agriculture, assisted the Xuzhou Zhiliu Working Group to carry out prevention and treatment and was assigned to work in Peixian County. Pei County autumn locust occurred in the second district lake. Due to the extremely low level of dry lake water, most of the bottom of the lake was exposed this year. Near the water by the recent half-width of the triangular grass area, soil humidity greater. Up is lotus root