在我省马尾松林区,特别是解放后营造的幼林,常受多种钻蛀性害虫危害。每年春季正当松树嫩芽迅速向上生长形成新梢的时节;大量的松梢害虫开始蛀入嫩梢,受害的枝梢髓心被蛀空,梢头向下弯曲,呈现枯萎状。如主梢被害则会阻碍松树的高生长,形成矮小弯曲多枝的干型,严重的影响林木快速丰产,并大大降低了木材的质量。近年来根据各地的反映,对该虫的防治极为迫切,但无良好对策。为此我们于今年春季先后在本省的杭州、临安、昌化等地进行了害虫种类和危害情况 In our province Masson pine forest, especially after the liberation of the creation of young forest, often by a variety of boring insects harm. Each spring, when the pine buds grow rapidly to form new shoots, lots of pine shoot pests begin to erode into the tender shoots. The damaged shoots are eroded and their shoots are bent downward and withered. Such as the main shoot will hinder the pine growth of high growth, the formation of short branches and more dry branches, a serious impact on the fast yield of trees, and greatly reduce the quality of wood. In recent years, according to the local reflection, the control of the insect is extremely urgent, but no good solution. For this reason, we conducted pest species and damage situations successively in Hangzhou, Lin’an and Changhua in our province this spring