【摘要】 在多树种混交林中观测了杨树天牛选择寄主的全过程，对天牛的感受器官；触角、复眼、下颚须、下唇须、跗节等分别进行了处理试验，证明了其视觉和嗅觉器官对天牛选择行为的影响最明显。更多还原

【Abstract】 The whole process of selecting-host of longicorn was observed in mixed forest consisting of 30 tree species. Sense functions of antenna, compound eye, labial palpi, maxillary palp,tarsus were tested. The result showed that the behavior of host selecting of adult longicorn was remarkable influenced by visual sense and olfaction.更多还原