白叶枯病是水稻的重要病害之一,我国有26个省市(包括台湾省)发生。湖北省在1974年大发生过一次,发病面积约269万亩,1979—1982年又连年发生,1983年再度流行,对水稻生产的发展影响极大。为探索比较好的防治白叶枯病的方法,我们进行了高效新农用抗菌素的筛选工作。 农用抗菌素的发展与筛选方法有密切的关系。抗真菌病害的抗菌素,由于筛选方法的改进,已筛选出一批高效低毒的农用抗菌素如井岗霉素等。而抗细菌病害(如白叶枯病)的抗菌素,在此以前还没有简便有效的 Bacterial leaf blight is one of the most important diseases of rice. 26 provinces and cities in our country (including Taiwan) occur. Occurred once in 1974 in Hubei province, the disease area was about 2.69 million mu. It happened again and again in 1979-1982 and then prevailed again in 1983, which greatly affected the development of rice production. In order to explore a better method of preventing and controlling bacterial leaf blight, we carried out the screening work of new efficient agricultural antibiotics. The development of agricultural antibiotics and screening methods are closely related. Anti-fungal disease of antibiotics, due to the improvement of screening methods, has been screened a number of high efficiency and low toxicity of agricultural antibiotics such as Jinggangmycin. Antibacterial diseases (such as bacterial leaf blight) antibiotics, in the past there is no simple and effective