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毛白杨锈病是苗圃毛白杨的重要叶部病害之一。为探讨病害的生长量损失,研究不同病情与生长量的关系,进而寻找一种有效的防治措施,由中国林科院林研所曾大鹏和北京市园林科研所、北京市园林局绿化处、北京市东北旺苗圃有关同志组成的课题组,在掌握毛白杨锈病发生规律的基础上,采用春季展叶初期喷洒800—1000倍粉锈宁内吸杀菌剂铲除病芽的方法,有效地控制了病害的发生。并通过三年定株系统观察,对毛白杨苗木由锈病造成的生长量损失进行了数理分析,提出了一、二、三年生苗的三个数学模型,为研究防治苗圃毛白杨锈病的经济效益和防治指标提供了数据。
Populus rust is one of the important leaf diseases of Populus tomentosa in nursery. In order to explore the loss of the growth of the disease and study the relationship between the different diseases and the growth, then to find an effective control measures, by the Chinese Academy of Forestry Lin Dapeng and Beijing Institute of Landscape Architecture, Beijing Landscape Bureau Green Department, Beijing City northeast Mong nursery comrades composed of the task group, grasping the law of the occurrence of white rust on the basis of the use of early spring leaf spray show spraying 800-1000 times within the powder fungicide germicide to eradicate the disease buds effectively control the occurrence of disease . Through three-year fixed-plant observation, the mathematical analysis of the growth loss of Populus tomentosa seedlings caused by rust was put forward. Three mathematical models of one, two and three year seedlings were put forward. In order to study the economic benefits of preventing and curing Populus tomentosa rust And control indicators provided data.