花生纹枯病的防治花生纹枯病，是花生生长后期的一种重要病害。封垅后最易发生，以后渐扩展蔓延造成花生减产。感病的叶片，叶尖或叶缘出现暗褐色病斑，渐向内扩展，有时几个病斑合在一起，成为不规则的云纹状病斑。当田间高温高湿时，几天内可蔓延全部叶片，叶片受害后像... Prevention and control of peanut sheath blight Peanut sheath blight is an important disease of late peanut growth. After the closure of the most likely to occur after the gradual expansion of spreading peanut production. Sick leaves, leaf tips or leaf edge appear dark brown lesions, gradually expanding inward, and sometimes several spots together, becoming an irregular cloud-like lesions. When the field temperature and humidity, the spread of all leaves within a few days, leaves after the victim like ...