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我区黄星天牛(Anoplophora nobilis.Garglbouer),过去误认为光肩星天牛(Anoplophora glabripennis),1961年由外省传入隆德县杨沟、奠安等公社,现已蔓延扩展到固原、泾源、西吉、海原等五县34个公社,危害面积1.93万多亩。严重危害小青杨、小叶杨、箭杆杨等。柳树、榆树受害轻些。这些都是固原地区主要造林树种,对林业发展威胁极大。一般杨树胸径5厘米的小树就开始招害。小树先由基部开始蛀害,逐步扩散到全树。大树受害重于小树;大树主干上部重于下部;行道树、四旁绿化树重于林木;林缘木
Anoplophora nobilis.Garglbouer, formerly known as Anoplophora glabripennis, was introduced to the communes of Yanggou and An’an in Lude County in 1961 and has now spread to Guyuan, Jingyuan, Xiji, Haiyuan and other five counties 34 communes, endanger an area of 19300 acres. Serious harm to young Populus, Populus, arrowhead Yang and so on. Willow, elm victimized slightly. These are the main afforestation species in the Guyuan area, which pose a great threat to the development of forestry. General poplar 5 centimeters diameter tree began to move. Small tree first by the base began to moth damage, and gradually spread to the whole tree. The tree is harmed more than the small tree; the upper part of the tree is heavier than the lower part; the street tree is surrounded by green trees heavier than the trees;