杨树是我国北方的主要速生用材树种。但是,蛀干害虫的为害已成为发展杨树的一大障碍,它不仅影响杨树的生长,而且直接影响成林、成材。由于这类害虫为害的隐蔽性,给防治工作增添了不少困难。因此,寻找各种天敌,开展蛀干害虫的生物防治具有重要的意义。 Poplar is the main species of fast-growing timber in northern China. However, the damage caused by pests has become a major obstacle to poplar development. It not only affects poplar growth, but also directly affects the success of poplar trees. Due to the hidden nature of such pest damage, prevention and control work has added a lot of difficulties. Therefore, looking for all kinds of natural enemies and carrying out biological control of stem borers is of great significance.