新疆主要造林树种对光肩星天牛的抗性

The resistance of the main host-tree species to Anoplophora glabripennis in Xinjiang

利用网室接种和树干套笼接种光肩星天牛Anoplophora glabripennis(Motschulsky)成虫的方法,于2005年～2006年在新疆光肩星天牛的发生疫区,进行10种主要造林树种对其抗性的测定试验。结果显示:2种接种试验结果基本一致,各试验树种都不同程度地受到光肩星天牛的危害,表现出不同的抗虫性。根据孵化幼虫数综合分析,判断出试验树种的抗性高低的顺序为:桑树、沙枣>胡杨、圆冠榆、新疆杨、白榆、箭杆杨>复叶槭、旱柳、馒头柳。另外根据网室内试验树种上出现的羽化孔判断,光肩星天牛在新疆巴音郭楞蒙古自治州1年发生1代。

By using the methods of inoculation Anoplophora glabripennis （Motschulsky） adults in net room and caged seedlings, the resistance of the 10 host-tree species was measured from 2005 to 2006 in Xinjiang. The results showed that there were no difference between the two methods. A. glabripennis attacks all 10 tree species in different degree. According to the excreting frass holes, the resistant sequence from high to low was： Morus alba L., Elaeagnus angustifolia L. 〉 Populus euphratica Oliv., Ulmus densa Litv., Populus alba var. pyramidalis Bunge., Ulmus pumila Linn. , Populus nigra var. thevestina （Dode） Bean. 〉 Acer negundo L., Salix matsudana Koidz., Salix matsudana f. umbraculifera Rehd. Based on the emergence holes, A. glabripennis was one generation in one year in Bayingolin Mongolia Autonomous district of Xinjiang.