随着我省东部山区、半山区农业综合开发的进行，山沟荒地栽培水稻得到了发展，但由于局部小气候、生产环境等因素，致使水稻赤枯病时常发生，影响和制约了山沟荒地的开发与利用。其赤枯病发生与防治要点如下： 一、水稻赤枯病的发生 水稻赤枯病通常在水稻分蘖后逐渐出现，主要 With the comprehensive agricultural development in the mountainous and semi-mountainous areas in the eastern part of our province, rice cultivation has been developed in the wasteland of the valley, but due to the local microclimate, the production environment and other factors, the occurrence of rice brown spot disease often occurs, affecting and restricting the development and use. The emergence and prevention of its main points are as follows: First, the occurrence of rice bacterial blight Rice red blight usually appear after tillering, the main