dadougenfubingzhuyaoshimiaoqifasheng,bingmiaodezhugenhekaodimiandejingjibuxingchenghonghese,lveaoxiandebingban,picengkailiechengkuiyangzhuang。youmiaobeihaiyanzhongshi,jingjibubianhexisuozhedaokusi,youzhubeihaiyanzhongshi,zhizhubianhuang,shengchangchihuanaixiao。dadougenfubingjunzaiturangzhongyuedong,dangmiaoqiduoyu、地溫低、土壤濕度大或地勢低窪,排水不良、土壤黏重發病重。重迎茬地發病重,高粱茬地種大豆也發病重。此病菌還侵染甜菜、高粱、茄子、菸草等多種作物。
防治方法:用藥劑拌種包衣,可用黑龍江省農科院植保所研製的“大豆微複藥肥”拌種包裝(詳見使用說明),也可用50%福美雙可濕性粉劑或50%多菌靈可濕性粉劑,按種子量的0.5%拌種。
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