花生叶部病害主要有褐斑病、黑斑病、网斑病和疮痂病。这4种病害遍及花生产区成为主要病害。有的病害单独发生,有的病害混合发生于同一植株的同一叶片上。随着花生种植规模的加大和连年种植,发病越来越重,往往不到收获季节,叶片就提前脱落,这种早衰现象常被误认为是花生成熟象征,特别是叶子提前落到根茎部,遇到气候潮湿,往往引起根茎部病害的发生,引起 Peanut leaf disease are brown spot, black spot, net blotch and scab. These 4 kinds of diseases have become the main diseases throughout the flower production area. Some diseases occur alone, and some diseases occur in the same leaf on the same plant. With the peanut planting scale and perennial planting, the incidence of more and more heavy, often less than the harvest season, the leaves off in advance, this premature decline phenomenon is often mistaken for the symbol of peanut maturity, especially the leaves fall ahead of the rhizome, Encounter humid weather, often cause the root cause of the disease, caused