经营杨树速生丰产林成败的关键之一是对杨树病虫害的防治问题。防治得好,就能培育成速生优质良材,否则,将会大大降低人工林的经济效益。为防治杨树虫害,除进行常规的药剂防治外,生物防治是不可忽略的途径,采用招引益鸟防治杨树虫害则是值得试验的一种方法。为观测益鸟对杨树虫害防治的效益,特 One of the keys to the success or failure of poplar fast-growing and high-yield forests is the prevention and control of poplar pests and diseases. Well-controlled, we can cultivate high-quality fast-growing quality, otherwise, will greatly reduce the economic benefits of plantation. In order to prevent poplar pests, in addition to the conventional chemical control, biological control is a way not to be ignored, the use of attracting poplar pests to attract birds is worth testing a method. To observe the benefits of poplar pests prevention and control, especially