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梨园病虫综合治理是以生态系中的自然控制力量为基础,立足于生态学和环境保护学的观点,注意该系统本身的反馈和调节,优先利用自然因素和农业技术、有益生物和抗性品种等,以梨果为中心,协调各种防治措施,充分发挥生态系中有利因素的作用,限制不利因素的发展。在了解防治对象的发生动态和防治费用的比率关系等情况下,按经济阈值来决定防治时间和方法,把病虫的危害程度或种
Integrated management of pests and diseases in pear orchards is based on the natural control forces in ecosystems. Based on the perspectives of ecology and environmental protection, attention is paid to the feedback and regulation of the system itself, giving priority to the use of natural factors and agricultural technologies, beneficial organisms and resistance Varieties and so on, to pear as the center, coordinate various prevention and control measures, give full play to the role of favorable factors in the ecosystem, to limit the development of unfavorable factors. In understanding the occurrence of prevention and control of the object and the ratio of the relationship between the cost of prevention and treatment, according to the economic threshold to determine the time and methods of prevention and control of pests and diseases of the extent or species