苹果褐斑病是苹果树上的重要病害。如不及时防治,极易造成早期落叶,过去用波尔多液防治,基本可以控制此病的发生,由于农业技术的不断提高及工业生产的需要,对农药的需要量愈来愈多,因此筛选低毒有效的药剂及农用抗生素防治此病是当前生产上急待解决的问题,我们自1976—1978年根 Apple brown spot is an important disease on the apple tree. If not timely control, can easily lead to early deciduous, the past Bordeaux mixture prevention and control can basically control the occurrence of the disease, due to the continuous improvement of agricultural technology and industrial needs, the demand for pesticides more and more, so low screening Toxic and effective drugs and agricultural antibiotics to prevent and cure the disease is the current production of urgent problems, we since 1976-1978