近年来,为了降低环境风险,人们减少了化学农药的使用次数。在此形势下,既要减轻对环境的污染,又能有效地提高农业生产率,利用存在于自然界微生物防治病虫害无疑是一个很好的途径。日本组合化学发现了对种传病害——水稻恶苗病具有卓越防治效果的木霉菌 Trichoderma asperellum(=Tatroviride K.)SKT-1菌株。该菌株除对真菌病害水稻恶苗病有效外,对细菌性病害水稻颖枯病和水稻 In recent years, the number of chemical pesticides used has been reduced in order to reduce environmental risks. Under such circumstances, it is undoubtedly a good way to reduce the pollution of the environment and effectively raise the agricultural productivity. It is undoubtedly a good way to use the microorganisms in nature to control pests and diseases. The Japanese combinatorial chemistry has discovered Trichoderma asperellum (= Tatroviride K.) SKT-1 strain which has excellent control effect on the introduced disease, rice Bakanae disease. In addition to the fungal disease of the strain of rice Bakanae disease effective, bacterial wilt disease and rice paddy