松褐天牛从取食开始到试验结束 ( 5 0d) ,将松材线虫通过补充营养伤口传递到健康松树 ,取食到 2 0d时传递的数量最多 ,每头 694条 ,到第 30天数量较多 ,在此之前和之后数量较少 ,每头 1 0 0条左右。松褐天牛将 60 %的松材线虫传递到当年生树枝 ,随着树枝年龄增加 ,传递数量减少。实验室和林间试验分离测计表明 ,松褐天牛的身体仍残留一定数量的松材线虫 Monochamus alternatus reached the end of the experiment (from the feeding stage to the end of the experiment) (50d), and the pine wood nematodes were delivered to the healthy pine trees through feeding nutrition wounds. More, before and after the number of less, about 100 per head. Monochamus alternatus will pass 60% of the pine wood nematodes to current annual branches, with the number of branches reduced, as the branch age increases. Laboratory and inter-forest experiment separation and measurement showed that the body of Monochamus alternatus remains a certain amount of pine wood nematode