水稻白叶枯病是水稻的重要病害之一,又是国内植物检疫对象。往年本病在我省发生面积不大。1990年由于水稻引种带菌及气候条件适宜发病等原因,在郑州稻区大面积发生蔓延,造成减产10%左右。14%克菌铜水剂是郑州农化厂生产的一种新型广谱性杀菌剂,对水稻白叶枯病具有特殊的保护和治疗作用。1990年我们对水稻白叶枯病进行药 Rice bacterial leaf blight is one of the important diseases of rice and is also the object of domestic phytosanitary. In previous years, the disease occurred in our province is not large. In 1990 due to the introduction of rice and climate conditions suitable for disease incidence and other reasons, large areas of rice in Zhengzhou spread, resulting in about 10% reduction. 14% g Bacterial copper agent is a new broad-spectrum bactericide produced by Zhengzhou Agrochemical Plant, which has special protection and treatment effects on bacterial leaf blight of rice. In 1990, we worked on rice bacterial leaf blight