一、发病特点花生青枯病是土传性细菌病害,花生全生育期都能发病,但以盛花期最重。发病初期,植株顶端第二片叶表现失水萎蔫,3～5天后,全株叶片从上至下急剧萎蔫,但仍然保持绿色,故称“青枯病”。植株一旦得病,则全株枯死,发病严重的地块,往往成片枯死或绝收,农民称之为花生的“癌症”。二、防治方法对往年发病重的地块,可倒茬轮作,减轻病害传播。对已经发病的田块,结合浇水667平方米冲施硫酸铜4千克和碳酸氢氨50千克,或叶面喷施三氯异氰尿酸1000倍液+72%农用链霉素2000倍液+农药助剂有机硅,每7天喷1次,根据病情 First, the incidence characteristics Peanut bacterial wilt is soil-borne bacterial disease, peanut can be disease during the whole growth period, but the heaviest flowering period. Early stages of disease, the top of the second leaf showed loss of wilting plant, 3 to 5 days after the whole plant sharp wilt from top to bottom, but still remain green, it is called “bacterial wilt.” Once the plants get sick, the whole plant withered, the incidence of serious plots, often into pieces dead or unmanifested farmers call peanut “cancer ”. Second, the prevention and treatment methods In recent years the incidence of heavy land, crop rotation can be inverted to reduce the spread of disease. On the field has been the disease, combined with watering 667 square meters Chong copper sulfate 4 kg and 50 kg of bicarbonate ammonia, or foliar spray trichloroisocyanuric acid 1000 times + 72% agricultural streptomycin 2000 times + Pesticides additives silicone, spraying every 7 days 1, according to the disease