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早稻生长后期及晚稻生长中后期,往往能见到禾苗叶尖干枯,但这种现象并不一定是白叶枯病。目前有几种病虫危害都能引起水稻叶尖干枯。遇到这种情况只有仔细找出发病原因,对症下药,才能收到较好的防治效果。白叶枯病引起的叶尖干枯。这是一种细菌性病害。常见水稻白叶枯病病斑是黄白色到灰白色的长条斑,边缘波纹状,界限明显。病斑沿叶脉上下扩展,严重时可导致全株枯死。在雨
Late rice growth late rice and late rice growth, often can see the seedling leaves dry, but this phenomenon is not necessarily bacterial leaf blight. There are currently several pests and diseases can cause leaf tip dryness in rice. Encountered this situation only to find out the cause of the disease, the right medicine, in order to receive better control effect. Leaf tip blight caused by bacterial blight. This is a bacterial disease. Common rice bacterial blight spot is yellowish white to gray white strip, edge corrugated, clear boundaries. Lesions spread up and down along the veins, severe cases can lead to whole plant died. In the rain