近年来,我国城市绿化取得了前所未有的成就,城市环境质量明显改善。各城市都将园林绿化作为经营城市的重要手段,市民是直接受益者。在领导的重视和园林工作者的辛勤工作下,各城市的空气质量、环境质量和市民的活动场所均大为改观。但在城市化迅速发展进程中,人类也不同程度地改变和破坏了生物之间的生态平衡,引进了许多外来植物,建造了许多新的植物类群,形成了新的城市植被和园林植物格局,在其发展过程中不可避免地出现了一些偏离初衷的不和协音符,导致了园林植物中有害生物的严重发生,造成了经济上的巨大损失。而这种损失在时间上是不可弥补的,该损失目前还没有得到足够的重视。由于园林植保工作具有前瞻性的特点,因此决定了应以“预防”为主,“治疗”为辅。 In recent years, China’s urban afforestation has made unprecedented achievements, and the quality of urban environment has been significantly improved. All cities regard landscaping as an important means of operating a city, and citizens are the direct beneficiaries. With the leadership’s attention and the hard work of garden workers, the air quality, environmental quality and public activities of all cities have greatly changed. However, in the process of rapid urbanization, human beings have also changed and destroyed the ecological balance among different living organisms in varying degrees. Many exotic plants have been introduced and many new plant groups have been built, forming new urban vegetation and landscape architecture. In the course of their development, some uncoordinated and co-ordinators have inevitably emerged from their original intention, which led to the serious occurrence of pests in garden plants, resulting in enormous economic losses. However, this loss is irreparable in time and the loss has not been given enough attention at present. As the landscape plant protection has a forward-looking features, it should be decided to “prevention ” -based, “treatment ” supplemented.