水稻赤枯病是水稻生长前期的一种危害较重的生理性病害，常见于低洼排水不畅的连作稻田。近年来，在邯郸地区稻区已上升为主要病害，造成了一定的经济损失。据调查：该病一般始发于水稻分率期，感病后的水稻植株矮小，分荣减少，叶片初期变为暗绿色，老叶尖端出现许多红褐... Rice berry blight is a serious physiological damage in the early stage of rice growth. It is commonly found in continuous cropping paddy with poor drainage. In recent years, rice fields in Handan have risen to major diseases, causing some economic losses. According to the survey: the disease usually originated in the rice fractional period, the susceptible rice plant is short, the points Rong reduced, the leaves become dark green at the beginning, the tip of the old leaves appear many red brown ...