松墨天牛(Monochamus alternatus Hope)是马尾松、湿地松、黑松及日本赤松的主要蛀干害虫,也是台湾五针松、北美短叶松、日本冷杉、欧洲云杉、柳杉等主要蛀干害虫之一。该虫在我国分布于西藏以东、河北以南,东至台湾、南至广东;国外分布于日本、朝鲜、越南、老挝。近10年来,我国广东、广西、湖南、江西、安徽等省(区)多处发生天牛危害,不仅 Monochamus alternatus Hope is the main pest of Pinus massoniana, Pinus elliottii, Pinus thunbergii and Pinus thunbergii, as well as the major species of Pinus taiwanensis, Pinus thunbergii, Japanese fir, European spruce, Cryptomeria japonica One of the dried pests. The insects distributed in our country east of Tibet, south of Hebei, east of Taiwan, south of Guangdong; abroad distributed in Japan, North Korea, Vietnam, Laos. In the past 10 years, the beetles have been harmed in many places in Guangdong, Guangxi, Hunan, Jiangxi, Anhui and other provinces (regions), not only