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当前花木种类相对丰富,但结构相对不合理,而花木害虫以本土为主,树种结构的变化引起主要害虫种类的变化,气候因素又助长了害虫形成与消长,另外还有人为传播不断造成外来害虫种类增加。杨树害虫是主要害虫,并且它造成的经济损失最大,是重点防治对象。因此要建立花木有害生物突发事件应急机制,加强对主要花木害虫防治技术的宣传与技术推广,全方位的、科学的防控机制防治害虫。
At present, the species of flowers and trees are relatively rich, but the structure is relatively unreasonable. However, the main pests of flowers and trees are indigenous. The changes of the tree species cause the changes of the major pests, and the climate factors contribute to the formation and growth of pests. In addition, Increased variety. Poplar pests are the major pests, and it caused the greatest economic losses, is the focus of prevention and control. Therefore, it is necessary to establish a pest emergency response mechanism for pests and diseases, strengthen the propaganda and technology promotion of major pests and diseases prevention and control technologies, and provide a comprehensive and scientific prevention and control mechanism to control pests.