【摘要】 １９８８～１９９６年对李细菌性穿孔病发生规律和防治研究结果表明，病原菌只能在枝干上越冬，成为病害的初侵染来源，靠雨水传播，枝干、叶片和果实发病后可多次互相交叉传染，大量种植感病品种，降雨过多和冰雹，管理不善，成为病害流行的因素。重病园单纯靠药剂防治效果不理想，采用消灭侵染源，加强栽培管理，选栽抗病品种等措施可以有效地提高防治效果。更多还原

【Abstract】 The occurence of bacterial leaf spot of plum and its control were studied during 1988～1996, and the results showed that the pathogen could overwinter on branches of plum to become the initial infection sources of the disease. The pathogen was spreaded mainly by rainwater. When the branches, leaves and fruits were infected. the cross infections could occur several times. These factors of the cultivation of susceptible varieties, excessive rainwater and hail, and bak mangagement were the major ones of the epidemic of the disease, It would not produce the desired results by purely using chemicals in severe disease orchards. In order to improve the control efficiency, it is best to take to wipe out the initial infection sources, strengthen cultivation management and grow resistant varieties, etc,更多还原