一、前言云、冷杉不仅是重要的用材树种,而且因其树形美观、四季常青,所以也是城市园林的重要绿化及观赏树种。冷杉芽小卷蛾(Cymolomia hartigiana Saxesen)是云。冷杉的重要害虫之一,主要为害当年生嫩梢顶端的针叶及芽苞。据1985年调查,当年生顶芽及新梢被害率达9.9％(表4)。嫩梢被害后表现枯黄、萎蔫,严重者嫩梢针叶全部枯死,进而影响树木生长,导致树形改变,降低使用及观赏 First, the preface Cloud, fir is not only an important timber species, but also because of its beautiful tree shape, evergreen, it is also an important urban landscape and ornamental tree species. Fir buds (Cymolomia hartigiana Saxesen) are clouds. One of the important pests of fir, the main damage to the top of young shoots needles and bud buds. According to a survey conducted in 1985, the death rate of top buds and shoots was 9.9% (Table 4). Tender shoots after the performance of yellow, wilting, severe tender needle all dead, thus affecting the growth of trees, resulting in tree changes, reduce the use and ornamental