论文部分内容阅读
在辽宁省多数李树品种的果实上发生细菌性穿孔病，病斑近圆形、暗紫色、边缘具水渍状晕环，使果实去失商品价值。研究结果发现果实自落花后１５ｄ至采收前都可被侵染；雨日多、雨量大、品种感病、树势旺盛为病害流行的因素；防治该病有效措施是栽植抗病品种，消灭初侵染源，加强栽培管理，生长期用药控制病害发生。
Bacterial perforation occurred on the fruits of most plum varieties in Liaoning Province. The lesions were nearly round and dark purple with water-stained halo at the edge, which led to the loss of commercial value of the fruits. The results showed that the fruit could be infested 15 days after deciduous and before harvested. Rainy days, heavy rainfall, susceptible varieties and vigorous growth of the tree were the factors leading to epidemic diseases. Effective measures to prevent and treat the disease were planting resistant varieties and eliminating Initial infection, to strengthen the cultivation and management, growth and disease control disease.