花生叶斑病是花生叶部黑斑病、褐斑病和网斑病的总称,病害能混合发生于同一植株甚至同一叶片上。三种病斑主要发生在叶片上,叶柄、托叶,茎上也受其害。先在下部较老叶片上开始发病,逐步向上部叶片蔓延,发病严重时在茎秆、叶柄、果针等部位均能形成病斑。叶片正面的叶斑周围有清晰的黄色晕圈;叶片黄褐色至暗褐色。花生叶斑病遍及我国主要花生 Peanut leaf spot is the general term for leaf spot black spot, brown spot and net blotch in peanut. The diseases can be mixed and occur on the same plant or even the same leaf. The three lesions occur mainly in the leaves, petioles, stipules, stems also affected. First in the lower part of the old leaves on the onset, and gradually spread to the upper leaves, severe disease in the stalks, petioles, fruit needles and other parts of the formation of spots. Leaf blade on the front of a clear yellow halo around the leaves; leaves brown to dark brown. Peanut leaf spot throughout China’s major peanuts