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黄斑星天牛和光肩星天牛是陕、甘、宁三省 (区 )防护林的毁灭性害虫 ,在研究了各地多年的防治经验和主要造林树种的抗性表现后 ,得出天牛猖獗的主因是人为营造了大范围的天牛倾性林 ,使生态系失去平衡的结果。建立持续无天牛虫灾生态经济型林是以林业生态体系控制天牛的数量消长 ,是治本的战略 ,体现了综合管理害虫的生态学观点
Asteridae and Anoplophora glabripennis are the devastating pests in the shelterbelts in the three provinces of Shaanxi, Gansu and Ningxia. After studying the years of prevention and control experience and the resistance performance of the main afforestation species in various places, it is concluded that the main cause of the rampant is the man-made A wide range of Tianxingdulinlin forest, the ecosystem out of balance results. The establishment of sustainable pest insects ecological economic forest is the forestry ecosystem control the growth and decline of the number of terrestrial cattle is a permanent strategy that reflects the integrated management of pests from the ecological point of view