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菜豆细菌性疫病是由细菌侵染引起,可通过雨水、昆虫传播,高温高湿的气候条件,虫害杂草多,肥料缺乏的连作地发病重。 1.症状识别 地上部分均可受害,叶片开始多在边缘产生暗绿色油渍状小斑点,后扩展成不规则形,并逐渐变褐干枯呈半透明状,病部周围有黄色晕圈,潮湿时病斑上常有淡黄色菌脓。另外,在高温高湿
Beans bacterial disease is caused by bacterial infection, can be transmitted through rain, insects, high temperature and humidity climatic conditions, insect weeds and more, the lack of fertilizer, even the incidence of severe disease. 1. Symptoms can be identified on the ground damage, the leaves began to produce more in the edge of the dark green-like small spots of oil, after the expansion into an irregular shape, and gradually brown dry semitransparent, yellow halo around the diseased parts, wet Lesions often yellowish pus. In addition, high temperature and humidity